How to write a review that actually helps someone

The reviews people find useful all do the same thing. They let a stranger picture a situation close enough to their own to make a decision. That takes about five minutes and no writing talent.

Say what you were trying to do

“I needed to send 2,000 transactional emails a month for a small shop” is worth more than any adjective. Half the value of a review is telling the reader whether your situation is theirs.

Give the specifics

Which plan, how much it cost, how long setup took, what broke. If support was involved, say how long the reply took and whether it solved the problem. Numbers and timings survive translation into someone else's context; feelings do not.

Separate the service from the day you had

A delivery arriving late because of a storm is not a fault of the shop. A shop refusing to answer three emails about that delivery is. Say which one happened.

Include what went right

Even in a one-star review. A review that says the product was good but the billing was hostile is far more useful, and far more credible, than one that says everything was terrible.

Update it later if it changes

Services improve and decline. You can edit your review whenever you like, and adding the date you last used the service tells readers how fresh your experience is. When you are ready, find the website and write it.