We ate here around 2am after a late night out at the clubs - while in Vegas for a business conference  - and it was outstanding.  I had the Mongolian Beef and my two colleagues had other relatively common Chinese dishes, and all were excellent.  Still can't believe there was that high a quality of Chinese available in the middle of the night, right next to the sport book at the Venetian where I was staying, but hey ... it is Vegas.  Would definitely go again.