I really liked the Venetian. We stayed there for a few nights while in Vegas and really couldn't complain about much. My only complaint is that it may be too big for its own good! I got lost a few times just trying to find the elevators! On the other hand, the rooms are very nice and spacious. We had a suite on the 21st floor and loved it. Very nicely decorated and TVs everywhere: bathroom, bedroom and sitting area! Loved that.
The lines to check in and out were pretty long, but they do give you other options... too bad none worked for us. They hold your luggage until your room is ready or until you leave for the airport, the concierge was very helpful. There is a Grand Lux downstairs in the lobby and we ate there a few times. Overall a great hotel to stay at. I didn't even leave the hotel for like two days!! Only to go shopping, which I was able to do by walking to the Palazzo and the 2nd floor. Definitely recommend this place!