This place has many reviews, so I don't have much to add.
Love the atmosphere and the cocktails. I think it's a great place to take visitors.
That being said, I have to mention that I think the "modernist" drinks are gimmicky and overpriced. The dry ice really doesn't serve much purpose, other than to provide some good pictures and video. These drinks are something that I'd expect at a touristy joint in Vegas.
I'd recommend sticking to the normal cocktails... they are tasty, and worth the $15 or so that they cost.