I stayed at Aria last week for the 2nd time and must say that this is a gorgeous hotel.
It's majestic with lots of great restaurants, the rooms are decorated nicely--also clean & immaculate (I was upgraded to a Sky Suite and let me tell you, that was quite the experience as it was more like an apartment), you can change your room settings with a remote control (the lights, television, curtains and room temperature) and the lobby has a fragrant vanilla scent.
This hotel has a tram which can connect you to other hotels such as Bellagio and is also close to the airport.
Restaurants in this hotel include Masa, Sirio, American Fish as well as Buffet and Jean Phillipe which serves sandwiches and all kinds of sweet culinary delights.
Aria is an establishment that not only is a feast for your eyes, but meets all other sensory expectations.