Look at the pictures first!
I think AW feedback can be useful, I'm sure the punters who booked her were really pleased. That's because they like the way she looks. The problem is the wide variety of tastes.
Take note of messages that say: pictures are real/ accurate and will return. Particularly from well established punters (guys with lots of feedback from quite a few girls) they have a reference point.
You can see from her first piece of feedback from sexxxy ricado, he has 11 positive 9 of which are from the same lovey lady. Most probably self written (maybe not but looks suspicious). Oh on second look I see he's a male escort! They probably have a positive feedback exchange system going on.
Out of curiosity what was bad about the punt, her looks or everything in general?
Some guys might big up girls so they will receive better feedback or they are just the cunt struck type.
A good indicator is to see if she has regulars, but check they have other feedback from different girls as it could be self reported.
All this checking probably isn't what you want to be doing when you're horny. My advice: do some homework and put girls in your hot list which you can visit when in need.