My husband and I were looking for a place to dance on a thursday night. The hotel recomended Club 90. We went at 11:00 PM. There was no body at the door to great us. I could see the servers at their station, and a few people sitting at a table playing cards. Since nobody seemed to notice us entering, we didn't see a dance floor, or hear music, we left. It seemed like it was large enough to sit/hold a lot of people, yet they were not there that night. This isn't a place to go in the middle of the week, especially dancing.
Pros: easy to find, lots of glam, lots of tables
Cons: service, lack of people, entertainment