Dog owners shopping at Vše pro pejska, a Czech store for small-breed dogs, keep asking the same things: “Will it fit my dog?”, “When will it arrive?”, “Can I exchange it?” When we built their dog-clothing campaign in October 2025, we didn’t write a slogan. The banner got the size and measurements in centimeters, the copy covered fastening and exchanges, and one square image simply said “8,000 happy customers”.
The strongest ad copy usually isn’t written by a copywriter. It’s written by a customer — in a review, a support question or a post-purchase email. They just don’t write it as an ad. This article shows how to get five distinct ad concepts out of one review, and how to run them so the numbers decide, not taste.
Terms in this article
Five terms that tell you whether a review-based concept works. Each has its own entry in the glossary.
- CTR
Click-through rate. The share of people who saw the ad and clicked it.↗ - Conversion rate
The share of ad visits that end in a purchase or an enquiry.↗ - ROAS
Return on ad spend. Revenue divided by cost.↗ - ACoS
Ad cost of sales. The inverse of ROAS.↗ - Performance Max
A Google Ads campaign that assembles ads from the headlines, images and videos you upload.↗
Ads from customer reviews: what they are and why they work
An ad built from customer reviews is creative whose message comes from real customers’ words: the problem they had, the result they described, or the doubt they had before buying. It isn’t a quote in a box. It’s using their words, their order of arguments and their questions.
Customers describe a product in the language of the next customer. They don’t say “premium quality”, they say “still holding up after six months”. Your reader has already heard that sentence in their own head.
There’s a technical reason too. Google and Meta now assemble much of your ads themselves — Performance Max from the headlines, images and videos you upload, Meta from text and format variations. But the algorithm can only choose from what it gets. Five versions of one message give it no real choice. Five different angles do.
A chihuahua owner doesn’t buy “dog clothes”. They buy a jacket that fits their dog and won’t pinch.
From the Vše pro pejska case study · winter 2025/26
Five angles hiding in every review
Almost every longer review contains at least three of five building blocks. Once you can name them, you stop hunting for “a review good enough for an ad” and start using what each one already holds.
| Angle | What to look for | Question it answers | Where it works best |
|---|---|---|---|
| 01 Problem | The situation before buying: what didn’t work, what annoyed them | “Is this about me?” | Cold audiences, first seconds of a video |
| 02 Result | A specific change after buying, ideally with a time frame or number | “What do I get out of it?” | Cold and considering audiences, image with a headline |
| 03 Objection | “I hesitated…”, “I was worried that…”, price, size, risk | “What if it doesn’t work for me?” | Considering audiences and retargeting |
| 04 Comparison | “Unlike…”, “better than…”, their previous product or another solution | “Why this and not what I know?” | Search, shoppers comparing options |
| 05 Social proof | Recommendations, repeat purchases, gifts, customer counts | “Do other people buy this?” | Retargeting, display, Performance Max |
One sentence often carries two angles: “unlike my old backpack, my shoulders don’t hurt” is both a comparison and a result. For an ad, pick one main angle. An ad that tries to say everything says nothing.
A sample review broken into five ad concepts
Here’s the method on a review we wrote for this article. It doesn’t come from any customer or client, so don’t use it as a real one — it’s practice material only.
Sample review (commuter backpack): “I hesitated for weeks before paying this much for a backpack. I’ve ridden to work with it for six months and my laptop stayed dry even in a downpour. Unlike my old one, my shoulders don’t hurt even after an hour on the bike. I recommended it to a coworker and he bought one too. Only downside: the side pocket is too small for a big water bottle.”
That gives you five concepts. Each has a different hook, a different main visual and a different audience:
- Problem: “Laptop in your backpack and it’s pouring?” The video opens on rain over a bike lane; the product shows up in second three.
- Result: “Six months of biking to work. Laptop still dry.” A static image of a soaked backpack next to a dry laptop.
- Objection: “Pricey for a backpack? Price out a laptop repair.” For people who saw the product and didn’t buy.
- Comparison: “Unlike a regular backpack: no sore shoulders after an hour.” Two photos side by side, same angle, same light.
- Social proof: “I recommended it to a coworker and he bought one too.” Only works with a real quote or a number you can back up. Otherwise, skip it.
Notice what isn’t in the concepts: hype. “A backpack that survives anything” never appears in the review, so the ad doesn’t claim it either. That’s what keeps an ad built from a review believable.
Generator: five ad concepts from your review
Paste a review and pick its type, the channel and the audience. The generator finds a line for each of the five angles, ranks them and suggests a format. Nothing is sent anywhere; it all runs in your browser.
The generator looks for words typical of each angle (“hesitated”, “unlike”, “recommended”…). It’s a helper, not a verdict. If an angle has no support in the text, don’t write it in — use another review.
Where to find reviews, and what you’re allowed to do with them
Reviews on your site are just the start. The same raw material sits in support questions, post-purchase emails, marketplace and Google Business Profile ratings, and comments under your ads. For Vše pro pejska we put short reviews and unboxings from the store’s own YouTube channel into the campaigns instead of the videos Google assembles from images.
Questions are often worth more than praise. “Will it fit my dog?” is an objection every next customer has; they just didn’t write it down.
The rules we stick to:
- Real reviews only. In the EU, the Omnibus Directive bans fake reviews and requires sellers to say whether and how they check that reviews come from real customers. In the US, the FTC’s rule banning fake reviews and testimonials has been in force since October 2024.
- Quotes keep their meaning. Shorten them if you like; don’t turn them into a different claim. Paraphrases don’t go in quotation marks.
- Names and photos only with consent. Without it, use the text only, with nothing that identifies the customer.
- No new claims. If the review didn’t say it, the ad doesn’t claim it. Numbers like “8,000 customers” must be provable.
Review-based ad creative in a campaign: how to test it
Five concepts are five bets, and usually only one or two survive. At MyDeko we test creative on Meta in a 14-day cycle: four versions of the collection ad, three versions of the birthday frame, video with and without captions. Whatever doesn’t earn in 14 days ends.
- Test angles, not shades. Five versions of the same line with different background colors tell you nothing.
- Measure on two levels. CTR and the share of people who watch the first seconds show which hook grabs attention. Whether a concept sells is decided by conversion rate, cost per purchase and ROAS. A hook with a high CTR and no sales is expensive entertainment.
- Decide after 14 days. The winner gets budget and new variants: another review with the same angle, or a different format.
- In Search and Performance Max, spread the angles across headlines. Each headline in a different angle, not five paraphrases of one line. When a category has its own customers and its own questions, give it its own asset group — when that’s enough and when you need a separate campaign is covered in Why one PMax for the whole store can hold growth back.
AI can help draft more variants. Make it tear the concepts apart first, though — how to get it to do that is in How to make AI critique your work instead of agreeing.
A review is raw material, not a finished ad. Build five angles from one customer sentence, run them against each other, and after 14 days keep only the ones that make money.
Our rule for creative
Data from our accounts
Two online stores where we build creative from customers’ words. The numbers are results of whole campaigns, not of creative alone.
| Account | Creative | Angles | Campaign result |
|---|---|---|---|
| Vše pro pejska clothing for small breeds · Google Ads | Banner with size and measurements in cm, “8,000 happy customers”, review and unboxing videos from the store’s YouTube channel, copy on sizing, fastening and exchanges | Objection (size), social proof, result | Winter 2025/26 vs the previous one: ad conversion rate +52%, the Clothing PMax at 16.3% ACoS the cheapest campaign outside brand |
| MyDeko soap flower bouquets · Meta Ads | “A soap flower just for her” ad, “The bouquet that never wilts” video, creative on a 14-day cycle | Result (a gift for her), comparison (a bouquet that never wilts) | “Just for her”: 36% of spend and 45% of purchases. Video: ROAS 1.75, 1.92 in September (as reported by Meta) |
At Vše pro pejska we replaced generic “quality products” with what convinces a customer at a small store: ratings, delivery speed and a safe size exchange. The full-year result is in the Vše pro pejska: 12 months case study: ACoS down from 22.7% to 17.2%, and ad revenue +31% on 1% lower spend. At MyDeko, “The bouquet that never wilts” is a comparison with cut flowers, even though no other flowers appear in the ad.
What the data doesn’t say
Creative never works alone. At Vše pro pejska the campaign structure changed at the same time, so part of the growth belongs to it. The growth also brought more customers, not more profit: average order value fell 11% and gross margin fell from 49.9% to 44.8% of revenue over the winter. At MyDeko three levers moved at once — price, website and ads — and their shares can’t be separated. That’s why we test angles against each other in the same campaign, not “before and after”.
Key takeaways
Download the five-angle matrix and the brief template on the left.
Key takeaways
- A review is raw material. The ad doesn’t need all of it, just one line with one angle.
- Look for five angles in every longer review: problem, result, objection, comparison and social proof.
- Customer questions and doubts are the most valuable part. They’re the objections of people who never wrote anything.
- If the review didn’t say it, the ad doesn’t claim it. Real reviews only; names and photos only with consent.
- Run the angles against each other and after 14 days keep only the ones that sell.
Want your reviews and customer questions working in your ads? We turn them into banners, videos and copy as part of our ad creative production — including the test that decides what stays. Or send us an enquiry below.
FAQ
Can I use customer reviews in my ads?
Yes, as long as they’re genuine and you don’t change their meaning. EU and US consumer protection rules ban fake reviews and testimonials. Use a customer’s name or photo only with their consent; otherwise use the text alone, without anything that identifies them.
What is an ad concept, and how is it different from a finished ad?
An ad concept is the one idea an ad carries: the angle, the hook and the main visual. A finished ad is one execution of it in a specific format, such as a 4:5 image or a 9:16 video. One concept can produce several ads; five concepts give you five different bets.
How many concepts from one review should I test at once?
Three to five different angles is sensible. More than that splits the budget so thinly that none of them gets enough impressions to call a winner. We review after 14 days and keep only what earns.
Can I shorten or edit a review for an ad?
You can shorten it if the shorter line says the same thing as the original. You can’t turn it into a different claim or add what the customer didn’t say. Write your own paraphrases without quotation marks so they don’t read as quotes.
What if I don’t have many reviews?
Use support questions, post-purchase emails, ratings on marketplaces and in your Google Business Profile, or comments under your ads. Questions like “will it fit?” or “when will it arrive?” are as valuable as praise because they reveal objections.
How do I know which angle works?
Click-through rate and views of the first seconds of a video show whether the hook grabbed attention. Conversion rate, cost per purchase and return on ad spend show whether it sells. Sales decide, not clicks.
Co-founded Marketing ASAP. Builds creative from what customers ask and write in their reviews, and makes it earn its place with campaign numbers.
Discussion 0
Made an ad from a customer review? Tell us which angle worked for you.