Not worth the effort. Like others have said, the location and the vibe of this place is just really unpleasant. They seem to have a weird/random way of screening people. Older ladies just sitting in a huge room staring at you without saying anything, the massage rooms and tables themselves are uncomfortable, weird music, weird incense-type smell. I got the same "back only" act a while ago which was strange because the provider seemed happy to allow me to turn over and do some OTC roaming.
If the place was nicer and didn't have such a weird, hostile vibe I might be willing to invest the time to make them comfortable or get to know one of the providers but the place is just not somewhere you want to spend a lot of time.