Don't go, it's very informal, that is to say, it's scary to let you go out without restrictions. It used to be a pyramid scheme company, so be careful about your personal safety. My friend has been to Xinjiekou, which seems to be in a building behind the central government. He has had more than 40 massages, but he was afraid to go for the last few times. I don't know why, but I asked and didn't say anything.