Was a delegate at a recent conference held in this fantastic place. The setting of the Sonora Desert was stunning and the facilities are top rate. As others have commented, the rooms are amazing and have every conceivable appliance including a gas fire! Bathroom and bog were massive! Service was seamless and the staff could not have been more helpful and supportive. Even the gym (normally a weakness of US hotels) was great. Conference facilities and support were outstanding. Only niggles were that to get anywhere from the hotel was a taxi ride (i.e. you need a car - perhaps to be expected in Arizona!!) and the 'a la carte' breakfast. Quality was good but service was slow and the combinations were inflexible. They should adopt a buffet system (in common with the luxury Asian hotels) at a flat rate price - it allows those who want it to have 'breakfast on the run'