Renting John's F-150 was as painless as could be! John picked us up from the airport (on Christmas, no less) and drove us to where he had the truck parked. The truck was in great condition when we picked it up. He also explained in detail how to use the 4-wheel drive system (we were planning on going up to the peak of Mauna Kea).
John was very pleasant to work with overall and I would definitely recommend renting from him.