WE landed in Phoenix for the first time and proceeded to get our prepaid car rental purchased with our trip through Expedia. Already paid for an upgraded vehicle. When we arrived at HERTZ we were refused our upgrade and forced basically threatened to pay for a different vehicle. The staff at Hertz are very rude and unprofessional and Expedia didn't back us at all when we complained. Do NOT rent from Hertz. Double Tree resort is very nice , big and clean. Staff is great. Room numbering is very confusing. Request an inside room looking over pool/courtyard unless you like to look at the parking lots or hear the noise of cars on Scottsdale road. Bar drinks are watered down. food is good. Location is great. Our trip was quite enjoyable but our car rental experience with Hertz was terrible. We would go back to this resort only because of its location, not its price.