BOOK DIRECT THROUGH THE HOTEL
While checking in, there was another couple at the counter who had booked through Expedia and were arguing with the staff over the resort fee and taxes which were not covered by Expedia and were passed on to them upon checkout. Bummer. Book direct to save yourself from surprise fees. We scored an awesome room rate with a free buffet EVERY night. Not too shabby.
All in all, Aria is a clean hotel with a friendly staff. For me, the two best parts of this hotel are the buffet (which is awesome) and the proximity to everything else on the strip.