The dueling pianos were good... the video screens to watch the people dancing in front of the pianos were better... but the bartenders were the worst we had on the trip. Or, the worst I've had anywhere in recent memory. Why a bartender would ignore customers when they're not busy doing anything else is kind of a mystery to me. While there's plenty of rudeness to go around at bars, I wouldn't expect it to be sourced from the people serving drinks.
Also, they have a very strict ID policy here, and the door guy looked at mine about as long as the TSA guy at the airport did. And yes, the law is the law, but this was the first time I'd been ID'ed in sin city. Strange enough it was worth noting.