We also ride with Kingsley James (found him on this site actually) and concur with all the good sentiments about him: genuinely nice guy, quick to respond to emails, safe and easy ride, reliable and responsible, price competitive for airport transfers and day trips, etc. Last year on the way home from Mayfield Falls, Kingsley drove us through Sav la Mar so we could see the town come alive when everyone was leaving work and school for the day. He's often based out of the Xtabi hotel although drives to all hotels on beach/cliffs, and Kingsley is reputable throughout Negril. His site: http://kingsleystakecaretours.com