You didn't mention what your Budget is.
A punting friend recently met up with krissy and a friend of hers whose name I cannot recall. He paid £300 for 1hr, but had a great time with both of them. His comment to me was as follows:
"Had 3sum with the above. They came to solihull at wkend. 300 for the hour. Some fabulous deep three way snogging as banging krissy and girls deep kissed each other. Best bit was the owo, kissing and snowball they did at end.
Negative was they were false and clockwatched so prob won't see again, but recommended as a one off defo".
Krissy has been around for a while, and has also featured on Realpunting site. I'm sure there must be other reviews of her on this site, as I've not checked.