If you are serious about diving or do any technical diving STAY AWAY from this ""shop"". They have no knowledge in any tech gear, practices, or procedures. It took over 45 days to get my gear serviced (and they did not even do the work it was sent some other pace). Mike is absolutely horrible to work with, he questioned VIP stickers on my tanks because they weren't PADI. If you are content with basic open water, they are probably more than enough. With my experience and the diving I do they are worthless.