when writing reviews that are totally candid you can expect feedback from the provider.  Some will want to convince you to try again in a positive manner and others will resent anything less than positive and even become vengeful.  Some will resent an overly explicit detailed account.  Remember these are people with both feelings and you are also messing with something that affects their business.  I think its possible to be both truthful, tactful, and sensitive at the same time.  For example, perhaps the lady and client just didn't click.  Its one thing to say she was not his type or that he prefers a lady who is more gfe or whatever but unless there was some sort of deception based on what she advertises or tells a client prior to the session, it would be bad form to castigate her as a rip off.   A lady might say she is GFE but the guy discovers she doesn't kiss.  To me thats something a guy can complain about.  But if she doesn't say she is GFE you shouldn't hold that against her.  

What I see as a common problem is when a guy has read a lady's reviews and has expectations based on what he has read.  Never assume that any particular review is fully accurate.  Its ok in my opinion to report how it went for you but I hate reading a review where he its clear he is being mean spirited about not getting what he wanted based on that.