I actually booked my room through Hotwire so I wasn’t too sure if they would provide an upgrade but I tried with the $40 tip sandwiched between my credit card and DL – it worked! We went from the base level room (i.e. Studio Suite) to the Executive Corner Suite which had a really nice tub with separate glass shower. Additionally, it had a living room, sliding doors that separated the bedroom, a kitchen, and another half bath. We loved Vdara, it’s easy to get everywhere – it’s next door to Aria.