My partner took me here for my 22nd birthday. It was one hell of a treat.
He was able to get us a chair near the windows with a great view of the Bellagio Fountains. The lighting was dim, but not too dark and surprisingly quiet and romantic.
He ended up purchasing (not sure what the hell it's called) this sort of sampling type thing...expensive, but we had about 8 courses of food or so. By the time we got to the dessert, I was stuffed. The food was amazing. The service was spectacular. The place looked nice, but expect to spend a little money for this amazing place.