Long ago Thermae was not a bad option in the hours after the bars had closed. You'd sometimes see a stream of girls from the bars arriving then, looking for a first or last hookup of the night. But the bar girls have all turned to various apps and social media for those out-of-bar hookups, so the talent level at Thermae is not great. Older GGs. MINLF (Mothers I'd Not Love to Fuck).

I'm inclined to agree with the verdict. the concept and the length of time it has been running is unlike anything I have ever heard of before anywhere else in the world. I have been a couple of times for novelty value and to see what the "talent" is like. once I thought through the concept of the place and realised they are just "ordinary, normal" Thai girls looking to make a bit of extra money on the side, I lowered my expectations on terrific sex or "value for money".  it's a lottery. bloody dangerous for the girls too ... nobody knows they are there.  they keep that side of their lives hidden from family and friends.  thermae knows absolutely nothing about them and has no duty of care.  it's all very hidden away.  genuine, dangerous predators would be a very real threat.  not to mention the everyday, unhinged, drunk or drugged lunatic.   

It's been a very long time since I visited. The place was totally crowded with many, many girls (all GGs, since ladyboys weren't allowed in (they're outside on the sidewalk)  It was that crowded that customers could only walk one after each other in a circle, passing all the girls. Nearly impossible to stop for a chat. This, combined with average quality of the girls and ridiculous prices they asked for, explains why it has been a very long time ago   

I never went to Thermae, but from what I've read the girls inside aren't allowed to approach you, so it's low pressure. Walk around, see who you like, have a chat and see if things feel good, and if so take her upstairs to your room.

I have one night in BKK and was thinking about it. As wanted to look at The Thermae bar as never been there. 
How does the system work in Thermae? I’m not a young and handsome looking Korean or Japanese guy.