Been to loads in London over the years, but not the one you mention in Brum. In London the main one was called "The Gentlemen's Club", but it got busted a year or so back by the rozzers, and others disappeared then too, presumably worried. There is still one going near Paddington though, which is useful for us!
Years ago a woman called Summer used to do parties in Bristol monthly, they were great too, really easy to get to, but long since gone.

Anyway, I bloody love them. Choice of girls, 2-3 hours time. Watch them, participate, what is there not to like?
Not for the shy clearly, but as long as you are happy sharing a few holes, then go for it.
