I travel a lot for work and the treasure club has become one of my favorite places to break up my trip. I have only been by during the afternoon so the night experience may vary.
No matter what time of day I've stopped by there are a decent number of dancers. Sometimes there is a lull between stage performers, but usually not for long. It seems at times there are more dancers than customers (that's a good thing).
I'm usually only taking a break from the road so I'm not the biggest spender. Regardless, I tip well and enjoy the company. It's a great, relaxing way to kill some time and spend some money.