Absolutely beautiful hotel - 5 stars. However, I probably won't stay there again. I knocked a star off the rating because a) it's a frickin' maze. You waste so much time getting lost. I've been in almost every casino/hotel on the Strip (as well as Palms Place), and none of them compare to the Venetian labyrinth, especially since it connects to the Palazzo. The parking garage is miles away from the lobby. And you will get Phantom of the Opera stuck in your head your entire trip because it's on repeat in the elevators and on the guestroom floors.
Btw, on St. Patrick's Day, they dye the canal green :).