We took the 2.5 hour guided tour with David, and we could not have been happier with our decision to use Grand Company. We arrived 15 minutes early as requested, and David was there and ready to go. David took his time to give us instructions on how to have a safe trip, and he was excellent at driving home the safety tips mixed in with some funny commentary.
We began our trip, and followed David onto Hell's Revenge. Everything went great! David took his time with us, stopped numerous times for photos, history lessons, or geology lessons. He judged our driving skill during the first 30-45 minutes, then adjusted the tour to our skill level.
David has a fun sense of humor, but also took his role of keeping us safe very seriously. We could tell that we were likely to run over our scheduled 2.5 hours, but he never rushed us or made us feel pressured.
I am sure there are many UTV companies to choose from, but we highly recommend Grand Company.