It has been a while for me on that road but I do not remember it being bad at all fairly remote. If you have the time stop in at the trading post/ museum. You will pass through the Hopi reservation and keams canyon. Canyon de chelly right up the road as well
Donโt know when you are going but if anytime soon make sure and check the status of the Navajo reservation it hhad/has been under a pretty tight lockdown but unsure of current status
2016 Jayco 28.5 RLTS