Here's a tip. Make a reservation for the restaurant and you will get to go to the bar upstairs and not have to pay the cover charge. Got it? On with the show...
The drinks here are AWESOME. Expensive as shit though. The drink menu is pretty cool too. Rumor has it people even steal the drink menus but I can not confirm or deny this.
My first dining experience here was so-so (ahi tuna steak a little overcooked). Second time, much much better (awesome filet).
The view from the top of the Rio is really cool at night, bring a camera if you do that sort of thing. All in all, its a pretty hip and cool Vegas-y bar and club. If you don't like "beautiful people", stay far far away and perhaps Sizzler may be more up your alley.