It's not something I do often because I'm not entirely sure of the in-game benefit. The private club does feel like there is more to come, but it is a good place to recruit - if you need to once you can afford to buy the place.
However - once you own the club, you can go to "Production" (in the office, the 'Camera' icon - I'm sure you know this, but for future readers who may not) screen, select the "Stripper Pole" and assign girls there. It works the same as assigning to Photos or to Cam shows. When I visit the club after assigning a girl, they are there, standing on or around the stage in some really awkward looking pose doing their thang, as it were. Not sure what that "thang" is, but there they are!
Cam shows work really well and ads a lot to the game and player income, so I'm sure the intention is to make the Photo Studio and the Night Club work in similar ways with different but comparable benefits, but it doesn't seem like it is there yet.
MY QUESTION:
Does anyone here make their own mods for this? I have a few custom Special Characters with some very simple storylines, but nothing too complex. Do you have to start a new game to add characters or will they spawn if added to an already active game?