Unfortunately, there is plenty of choice in the San Francisco Bay Area but a lot of bad ones to.
Kyla Snow is a beautiful girl but, like many others, her service is very mechanical. You get the feeling that she wants you gone as quickly as possible.
My favorite girl is San Francisco is TS Katherine (TER ID: 207224), in Nob Hill. She is bottom-only but she is awesome. She kisses like no one ... very passionate. Totally not a clock-watcher. You feel like you are making love with that high-school girlfriend of your teens. It may be YMMV, though.
When I'm not looking to "make love" but to really fuck, and get fucked, I look for TS Kimberly Kills (TER ID: 225153) in Oakland. She is an amazing fuck, just like in her movies. She will fuck you until you can't take it anymore, and do whatever else you want.
My third recommendation, also on the east bay is TV Jackie (TER ID: 249249). She is not as passable as the other two, but she provides a great massage, and loves sucking cock while delivering a great prostate massage.
Let me know whether I can help with anything else. Also, do report on your experiences