I received a free upgrade to the Sky Suites Tower and that put it over the top. This tower is closest to the Conference Center and has it's own entrance, lounge, checkin desk, and car service. Staff and services are top notch, friendly, not stuffy. The Aria has a clean lined simple decor, bed was very comfy with lots of big pillows and layers of clean white cotton sheets and cotton duvet. Compared to the other casino floors, Aria is less smoky and doesn't seem so crowded or noisy. Great restaurants throughout and a convenient French patisserie right in the middle.