I've found that not every lady after meeting her is one with whom I can connect as well as I like. That is the result of a visit from time to time - but as Raina says, that doesn't mean that snide or insulting comments are OK. I know I certainly don't have the prefect body, and would hate to see reviews by the providers of my looks or attributes (or lack thereof) in the public forum.
Guys, if you and the lady don't hit it off - say, "She and I will not connect again," and let it go at that. Of course if there is a circumstance where there is danger or unadvertised upsell or other problems, I believe those should be included. In short, review the service, not the server.