I have been there quite a few times, and it varies. Sometimes they have porn, more often they have not. Sometimes pretty good porn, but more often cheapo Japanese girls moaning while being tortured with humming instruments.
I found this place several years ago, and it is not bad at all. Of course, it is a suck cinema in-the-make: they still have a snack stall, and kids run around in the lobby. Not much room for anything, and the audience is somewhat shy to do the full Monthy.
But then, the action is pretty regular and it ain't a bad place at all.
Actually, I was on my way to 39 sauna, but I couldn't find it.