I had breakfast here on a Saturday morning in mid-August and it was fantastic. It is a resort -- so expect resort prices -- but the service and atmosphere were great. The food isn't really worth what they charge but our waiter was extremely attentive and the view out the windows of the gorgeous McDowell Mountains and palm trees was just super relaxing.
However, it is really expensive. My boyfriend and I both got the breakfast buffet ($25 each) and with tip and valet parking ($5) we spent like $80. I think it was worth the $80 but keep in mind the food itself is nothing spectacular. You're really paying for a relaxing morning. The restaurant was empty at 11:00AM in mid-August even though the hotel itself was fairly busy.