Hi I went on this tour in Sept 2013 and had an amazing time. Make sure you have a large SD card for your camera and I'm sure you'll take well over 1,000 photos - I did!! Be prepared for early starts and long travelling days but it will be so worth it. This is one of the best holidays I've ever been on - the scenery is absolutely stunning. My favourite places were Badlands, Yellowstone, Cody, Monument Valley and Bryce. Be sure to do at least one of the flights if you haven't booked any of them already, especially the long flight from Monument Valley to Bryce and the helicopter flight over the Grand Canyon. Some of the motels are a bit basic but as you'll literally only be sleeping there it doesn't matter. Have a brilliant time!
Cheers,
Bob