well, we just got back from Cozumel, and we dove w/ them all last week. They are top notch in our opinion. We had a whole boat and the same divemasters for the week. They were really professional and attentive to our needs. One day I just didn't feel right after my first dive and didn't do the 2nd dive of the morning. the next day each divemaster and boat hand came up to me and asked if I was alright.
Also, on the 3rd day, my 1st stage was badly leaking. We had just had my regs. in for servicing in Jan. and even did a warmup/refresher dive in the local pool. No problems then and on the first 2 dive days. Joaquin worked and worked on my regs, and in the end, before the dives, they lent me their extra reg to use, til mine could get fixed (we had our tools at the hotel). turns out the O ring in the 1st stage was pinched and flat. We would use them again! Maggi