Staying here in 2 weeks, but just walked through while I was in LV. Very impressive place. Completely unsure how ay upgrades work but I did sign up for their Identity program while on site. Pretty good comps--much better for spending than gambling. I do think it off that the rates are completely different on the MR website than on the Cosmo site. MR site offers good AAA rates while the hotel site is rack rate. I booked some dinners via the concierge desk. Nice enough guy. Wacked him a $10 and got an email address--always good to have a contact. I am Gold and am not betting the house on a Gold upgrade or b'fast, but would be nice. Looks like wireless net is free everywhere in the hotel. If any Gold's have any experiences, it would be nice to hear.