Reviews are the most common affiliate content and most are worthless.
WHAT MAKES A USELESS REVIEW
Rewritten marketing copy from the provider's own website A feature list with no judgement Praise with no criticism, which readers recognise instantly No evidence the writer has used the service
WHAT MAKES A USEFUL ONE
Specifics from actual use: what you host, how long you have, what the support experience has been
Genuine limitations. Saying what a service is not good at is what makes the positive parts believable Who it suits and who it does not Screenshots from the actual control panel Real numbers where you have them
STRUCTURE THAT WORKS
Who this is for, up front What you actually use it for What is good, specifically What is not, honestly Who should choose something else A clear recommendation with your link
THE TEST
Would you send this to a friend who asked for advice? If it reads like advertising, it will convert like advertising, which is to say badly.