First, if you see Ava make SURE you see her by herself, one-on-one. She offers a two-girl-special but it is a waste of time and money, she is much better (and much more affordable) on her own. Also, she is not a clock-watcher, but if you go for the two-girl-special you will feel like you're getting the bum's rush - the other girl tries to get you out the door ASAP (she believes in quantity, not quality).
I have seen Ava 3 times now (one-on-one), and she keeps getting better and better. I'll describe the most recent meeting here. I went to her place in a decent area of Anaheim, she has private parking and a nice apartment.