If someone has a negative, read the review to see why they have been given the negative. If you still are not sure why, then reply to the topic to ask for clarification.
Every girl no matter who she is will get a few negative reviews in her career. You just need to read up on what has went on.
The best tip to do is to look at girls who you liked, or did not like, then look at the punter who gave that girl the same type of review of the experience you had with them and then click to see that punters other reviews and see someone else they liked too.