The "field reports" on AW should be taken with a very large pinch of salt, simply because there's nothing to stop the girl herself or (more likely) her pimp/bf putting them on for her.
Exactly. There is far more important research to do, such as Google searching the various forms of the phone number, and image searching the pictures, to bother about the discredited AW review system. No AW field reports may be just because the profile is new, or because she doesn't take bookings via the AW booking system. Equally lots of dodgy field reports can be a bad sign.
For me, the date of the profile is more important. Rushing in on the first day a profile appears carries a high risk. I tend to wait until a profile has been up for at least a week or two, to allow time for the scammers to be weeded out.