From the limo ride to the bread cart to the dessert cart - a solid five stars. There's hardly anything I can say that hasn't been said in previous reviews so I will refrain from repeating what's already been said.
My only word of advice to anyone who is considering eating here is...dress the part.
It's easy to dress a little more casual in Vegas. These days, you can see a show in jeans and eat at five-star restaurants. But the decor and the hushed ambiance of Robuchon put us on our best behavior.
So take this opportunity to dress up. And guys, stop the grumbling. The meal is worth it and you can lose the jacket and tie when you hit the casino floor.