Recommended to me by Ritz Carton Concierge for getting my kids, 13 and 14 yo boy and girl, certified. Figured they would work with a great company. Was not disappointed. The kids loved Emma, their young but competent divemaster. My wife and I dove with Gustavo off Mala pier on their last checkout dive which was difficult entry/exit but well worth it and actually one of my best dives in 30 years - like watching the Discovery Channel live. A day after their 3 day certification course with my wife and I a little tired from devoting so much time on the vacation to the kids diving, my kids were begging me to go diving again the next day (which told me everything about their experience). I texted Eric, the head of the company from dinner, and he had nothing available the next day in daytime, but arranged a custom night dive for us in Black Rock the following night. He assured me the kids were ready for their first dive after Junior Open Water to be a dive at night. He even sent the divemaster who trained them as well as a second divemaster with the 4 of us to make me comfortable with this. Everyone did great, the night dive was beautiful, and I could see underwater the kids were well trained at this level. I would characterize this operation as highly professional and friendly and can't wait to go back out with them as well. Highly recommend.