Tour time: September 12pm. The weather was perfect. I will be going back, and I will do the tour again. I would not try the loop in my own car, and I own an AWD SUV. The roads aren't great. I have read complaints that they could be better maintained, and I don't see how. The dirt is like sand.
My daughter and I were part of a tour that was guided by Coma. She took us to several different areas that are just stunning, including a privately owned hogan of a weaver. The weaver explained about the dyeing of the wool, weaving, and symbolism in the tapestries she creates and sells. Her work is simply beautiful.
Some things I wish I had been aware of: The internet is very, very spotty. There will be stops on the tour where tourists have the opportunity to purchase beautifully handcrafted items. In some areas, I was able to take advantage because the internet allowed the use of my card. But other areas did not have access to the internet, and I wished I had brought cash. Bring cash. There will be people you will want to show appreciation by gratuity. It is a great introduction to the Navajo culture.