Thanks for your response. I'm not sure what you mean when you say high, medium or low risk for this type of booking.
If she's a well established, well reviewed girl, it's less likely she's going to scam you or try blackmail you afterwards - it would damage her business. If she's an unknown romanian who you've gangbanged once, then there much higher risk of dodgy behaviour
If you are obscenely wealthy, married and she knows it, a girl + pimp (if she has one) might be prepared to leverage this against you
However, if you're an average joe and single with little to lose, then she might not bother.
These are just some of the things you should consider when weighing up whether any decision you make has a high, medium or low chance of biting you in the ass. Some people will take no risks; others are prepared to play loose. As others have mentioned, only you can decide. Personally, I struggle to think of the circumstances where I'm be ok with sharing my name and address with a SP.
Oh and of course do a review at some point. Woulds be nice to give something back to UKP, eh?