Thanks to 老江湖, I had a couple of good experiences when I visited Beijing last month.
The Agent 老江湖 introduced is "Yu Xin", very nice and good attitude.
It turns out "Yu Xin" is located in Shanghai, but her company handled Beijing, Tianjin, Shanghai and Hangzhou.
First night, she sent "Hua Hua", a pretty good looking girl from Jiansu, probably one of the best looking girls I have even seen. However, she may have worked in this career for too long and not so passionate anymore. Her breast is so beautiful! RMB300/90 min + taxi fare.
2nd night, Yu Xin sent "xiao Fang" (if I remeber correctly) from Hubei, not bad looking at all, but very talkative and asked for extra $$ to touch her. She also has wonderful breast! Yu Xin told me that she is 老江湖's favorite, but I tend to like "Hua Hua" better!
Will try when I visit Beijing again! But Shanghai seems to be more fun!