Ive been to St Thomas twice, and dove with Chris Sawyer each time. I liked them enough that I went back a second time. Only down side is that there were no rinse tanks for cameras. Friendliest dive crew Ive encountered, very knowledgeable, and excellent service. Rental equipment was very well maintained, you can use their rental regulators with confidence. You have the option of putting on your gear at the dive platform, and removing it in the water before reboarding, great for people with bad backs. They are very safety conscious and keep a very close eye on all divers. You wont be able to go off on your own, which can be annoying if your an advanced diver or photographer. Highly recommend the wreck of the Rhone trip, which goes out to the BVI. Some photos are at
http://www.pbase.com/elif/virgin_islands_underwater