So, Aria is a beautiful hotel with a great location, and is one of the newest hotels on the strip. The Deuce Lounge is, accordingly, a beautiful and trendy looking venue that has no line to get in. It is a bar not a dance club.
The problem with this place is the crowd. Not to be mean, but it just wasn't an attractive crowd, and you could tell it was the people who couldn't get in anywhere else that came here (alas, we came here after we were too late for our reservations at Marquee). It is unfortunate, because the place has a lot of potential.
There are people handing out 2 for 1 drinks cards all over the Aria lobby, which should have been my first sign that something was wrong... never good when a Vegas club (or bar) is begging people to go there.
Try something else.. it's Vegas after all.