A lot of nonsense gets posted here, which makes it frustrating to sift through the trash talk to find useful info and reviews.
My advice is to pick a review that you think sounds legit, and then try that girl out. Generally the fake reviews are in poor English, and tend to oversell the wrong things. There’s another brand of shill review where a guy will post a glowing review of a girl for some kind of discount or other benefit. But if your experience proves the review is genuine, you can start to trust that guy’s reviews. Always remember too, YMMV.
Unfortunately, as with so much in this hobby, there’s an element of risk to your time and money that you just can’t avoid.