I put location and how she looked
You didn't put it in the thread subject as you're instructed to do when you post a review.
Regardless it’s a negative just so other people don’t wast there money
It's a negative for you, others may think differently based on the particular reasons it was a negative.
Is she working from a palatial penthouse apartment or a dingy bedsit? What was particularly amazing about her body, does she match her profile pictures, is she facially attractive? You were there for 30 minutes and must have expected/asked for services such as kissing, oral, reverse oral and sex. What did you request, what was delivered, what was refused?