I was in GC at the beginning of the month. Have not gotten around to posting a trip report yet, but we dove with Ocean Frontiers and they were very accomodating. The first dive was guided, then the second (which was much shallower) was on your own. However, they would do it guided if you preferred. Their briefings were very detailed, and they took care of changing out your tanks. If you were diving with them on consecutive days, they would rinse and store your equipment for you. Nice feature!!
East end was great diving! I would like to dive elsewhere now just to compare, but I liked what we did!
Have fun!
Jean-o