Nightclub is frankly a big improvement; not just over the old Nightclub concept but it's finally tying to be its own game instead of just copying FNAF. Also it dropped the pointless attempt at 'horror' atmosphere and went pure smut, as it should have been.
Buggy though. I feel through the floor upstairs multiple times and there were a number of occasions where I placed a customer but the game would not let me drop a girl in. Only thing you can do it wait for the customer to leave.
The game does not explain how to fix the green lock on rooms on later nights though. It drops a hint about 'look for something suspicious on the floor' but I couldn't find anything and just had to play with 3 rooms every night. Being afraid to ever move upstairs because of the floor bug didn't help.