I am mostly a lurker and have never writen a review, not because I had a bad experience but rather because there was no chemistry. Personaly I am looking for a GFE that makes me feel that there was a real connection and that the girl had as good a time as I did.
I have only met a few girls here in Ottawa and the one girl that really gave me the experience of a lifetime was not on CERB and did not want a review and after seeing her only twice has disappeared. The other girls I have met from CERB gave me the service advertised and were generally satisfactory but not outstanding and I felt that on a site like this one it is not well recieved to point out any short comings in a girl's service when she has excellent reviews to begin with.
When it comes to a less then satisfactory encounter I start by looking at myself, "was I less into it, into her. was she less into me,(attraction counts). I also think back at the conversation we had and sometimes I remember a small detail that might explain things,(a boyfriend, partying the night before or even a busy day that adds to nipple or clitoral sensativity or lack of). Of course I might not have been up to par myself, one of the reasons I never book more then a few hours in advance.
All this to say that I would never consider writing a review that was less then honest and also I would not write one that would ruin a good reputation. After all circumstances are not always ideal for a great encounter!
IMO