I went 2 XS on a Sunday (9-12-10) when the pool area was open...this place was absolutely gorgeous!, but no real partying going on, more like a fancy mix n mingle, I'm a big party girl, don't like going 2 clubs 2 just stand around & b cute I like wild parties. I really enjoyed Haze @ Aria, Drais after hour Rain @ Palms & Rok @ NYNY I wish I would've gone 2 XS on a nite where they only had the club part open, perhaps it would've been a different atmosphere. Me n my hubby got in free with passes some guys gave us on the strip 4 Sunday & Monday only rite away, no wait time & like I said this place is immaculate! I'll give it another try the next time I'm in Vegas but not on pool nite.