Your reviews already hold the angles. Sort them by what the buyer is saying, and each pile gives you a different kind of ad.
An angle is the reason someone should care, said one way. A buyer who wanted better sleep and a buyer who was tired of cheap masks slipping off bought the same product for two different reasons. Each reason is a separate ad.
Reviews are where buyers give those reasons in their own words. The work is sorting them so the patterns show, then writing from the biggest piles.
The examples below are for Halden, a made-up sleep mask brand.
First, get enough reviews
Aim for 200 or more. Under 200, the piles come out thin, and under 40, treat it as a first pass to run again later.
Pull the 1‑, 2‑ and 3‑star reviews on purpose. Five‑star reviews are mostly about the result, so a set of only those leaves the pain and the doubts out.
Sort every review into five piles
1
Pain
What was wrong before they bought. These reviews say what the product fixed, in the words of someone who lived with the problem.
What a buyer wrote
“I woke up at 5 a.m. every day because of the streetlight outside.”
The angle it gives
Name the problem first, then the product. Buyers with that problem stop scrolling.
2
Objection
What nearly stopped them. Often in 3‑star reviews, or in five‑star reviews that start with “I was worried”.
What a buyer wrote
“I thought it would get hot and I would pull it off in the night.”
The angle it gives
Answer the doubt in the first line, before the viewer raises it.
3
Transformation
What changed after. The before and after, said by the person it happened to.
What a buyer wrote
“First week with it, I slept through my alarm.”
The angle it gives
Show the before and the after, with the time it took.
4
Surprise
What they did not expect. These are the details no competitor is talking about.
What a buyer wrote
“Did not expect it to stay on when I sleep on my side.”
The angle it gives
Lead with the detail nobody else mentions.
5
Words
Phrases worth copying exactly. Not a theme, just lines that say it better than you would.
What a buyer wrote
“Like someone turned the lights off in my head.”
The angle it gives
Lift the phrase into the hook word for word.
Count before you pick
Write down how many reviews landed in each pile and what share of the total that is. A pile with dozens of reviews is a pattern. One sharp quote is an anecdote, however good it sounds.
Start with the biggest pile. If Pain came back nearly empty, that usually means the low‑star reviews were missing, so go back and pull more before writing.
Turn a pile into a hook
Keep the buyer's words. A hook taken straight from a review sounds like a person, because it was one.
From the Words pile
“Like someone turned the lights off in my head.”
Hook
The mask buyers say turns the lights off in their head.
Keep a note of which review each hook came from, so anyone can check that the line is real.
Doing it in Otto Lab
Review Finder collects reviews from a product or store link into a spreadsheet. For Amazon, Trustpilot and Reddit, its Grab reviews button reads them from your own browser.
Customer Review Hook sorts them into these same five piles, says how many landed in each, and writes 30+ hooks in your buyers' own words. Both are on the Paid Plan.
Questions
How many reviews do I need?
200 or more gives clear piles. Under 40, treat it as a first pass and run it again when you have more.
Should I only use five‑star reviews?
No. Five‑star reviews are mostly about the result. The pain and the doubts sit in the 1‑, 2‑ and 3‑star reviews.
Can I use a competitor’s reviews?
Yes. Their low‑star reviews show what buyers in your category are unhappy with, which is often the angle you can answer.
What is the difference between an angle and a hook?
The angle is the reason to care. The hook is the first line of the ad that says it.
Start from research, not a blank page
Otto Lab starts with buyer research, then writes the ads.