I'm booked into an Aria corner suite for 2 nights in October. I am considering asking for a paid upgrade to a Sky Suite at check-in, but am wondering what makes them so special. Coming from the Rio, I wouldn't be able to take advantage of the limo, or the special check-in area. Is it the extra service that makes it so great (which probably wouldn't interest me - I'm pretty low maintenance), or is the room itself that is so much better. What makes them better than a corner suite.