The tour was just awesome. We had a great tour guide, Chad, who really knew his stuff and very entertaining too. He picked us up at our hotel. It's an all-day tour and very worth doing. Plenty of scenic stops (ah, the beauty!) and potty breaks were built in to the schedule. Our lunch at the El Tovar was excellent . At the G.C. some of us went to the iMax show and others opted for the helicopter ride. (it's an additional cost for the ride.)
We had adequate time for shopping too. While out on the open road Chad knew some road games that were fun and helped us get to know the other people. Highly recommended. I'd do this tour again.