We tent camped on the north rim in 1999 and had a great time.I'm sure it's a bit more crowded now than then.
Had a ground squirrel hitch a ride under the van. We tried to get it out but he ended up riding all the way down to Cliff Dwellers AZ where he bailed out. The area was dry as a popcorn fart with nothing for the little guy to eat. I'm sure he didn't last long.