Nothing but great things to say about scubaphil and tribe. Very knowledgeable and works with all skill and comfort levels. Accomedates busy work schedules to make getting certified an easy and painless endeavor. My girlfriend and I are definately going back to Phil for our advanced ow cert. His prices can't be beat and is worth every penny. Special thanks also to Phil's tribe Julie, Rea, Czech Phil and Douglas. Thanks again for a great experience.