On all of our trips to Maui(2001,'03,'05), we have done most all of our boat dives with MDS. We have been very pleased with them, and will go back to them again. We have gotten to know the people at the shop and the DMs and instructors there, and have always had a good experience with them. And they have remembered us from prev. trips. When we were in the shop picking up tanks for shore dives, and say where we were planning on going, they gave us helpful tips, as well. In 2003, I wasn't certified yet ( was in the process of, before our trip and didn't get finished) and did many intro dives with them, with my husband tagging along. Its all about attitude and personalities, too! My husband also tech dives and has a bp and wing, and insists on setting up his own gear, and he has had no problems. We are just happy and grateful to be there, and have lots of fun. On our trip in Feb., we did 9 boat trips with them and had great times. Like I said, it's all about attitudes and personalities. I know some people on this board won't like this post, but these are our experiences with them, and we plan on going again with them in 2007! Already have the condo reservations! Take care, Maggi