Important Tip: If you stay at Cosmo, you can get past the line and get in free.
The venue itself is beautiful. 3 different levels, 3 different themes. The main floor is where most people are at. The night we were there, they had a special performer so it was WAAAAY too crowded. I didn't even feel like it was a dance floor. More like people just watching the DJ while shoving everyone around. The outside area of the main floor is very spacey, its a good place to chill to take a breather or talk to people. The upstairs library area that isn't really anything unless you want to get lost with someone there ;). The downstairs has a hiphop room which actually had people dancing. I was there most of the time, because we actually had space to move around.
The staircases here were also terribly designed. They should've took inspiration from Palms and used escalators instead to get from floor to floor. Regardless, the venue itself is glamorous and beautiful and you have to check this place out at least once. I'm sure on a less chaotic night, it'd be more fun. They better shape up and learn from their early mistakes.