We just got back from Ambergris, out kids took the classroom and pool portion of the PADI course at home and then used Happy and Grumpy for the referal, they were great, with the two kids they had private lessons for the same cost as other dive shops down there. They have a very good boat, and good equipment. They are very thorough and work closely with the kids who were 13 and 16 yrs old.
Good luck,
Kathie