I was at Aria for an Aflac territory conference over the last week end. The convention food was like gourmet restaurant style, VERY GOOD! We had a filet one evening, which would have been equivalent to a $50 steak at a gourmet steak house - perfect. The rooms were one of the BEST hotel stays ever. Aria has the most comfortable beds. I was impressed by the latest technology in the room, the cleanliness, etc. It doesn't feel like the typical Vegas casino/hotel, much classier.
The only reason I'm not giving it five stars is because of the Cafe Vettro. We had breakfast there the last day of the stay and the waiter took forever to approach the table, the eggs came out cold and the flavor wasn't very good. Truthfully, I could have had a better meal at a Cocos or IHOP.