Didnt meet Ken, but he was very helpful over the phone when i booked the trip. Jeff was an excellent dive master, and worked hard to make sure everything worked well - above and below the surface. I was lucky that we were only four divers on our trip. The Sea Tiger wreck was a fabulous dive overall. The second dive was a bit boring, but luckily we found an octopus which allowed for some good photo opps. Overall i was very pleased with my experience with Rainbow and would dive with them again.