I went there with some friends for drinks before going out. This is a pretty good place but rather small and very packed after 9pm.
This place is located inside The Venetian hotel and you can conveniently park at their parking lot. Lavo is a rather small place that is divided into a casino area on one side and a club/lounge area on the other side which makes it pretty interesting. Unfortunately, there is very little room to dance so don't count too much on that...
The drinks are good and service is ok, except when the place gets very crowded late in the evening. It can be hard to get drinks then. One good thing about this place is the decor/atmosphere which makes it pretty unique in Las Vegas.
In conclusion, I would say that this is a pretty good place to get a drink before going out and I would recommend it. Feel free to message me for any additional details that you may need!