I have owned my DO Matrix since October. I think it's awesome. The best part is when I need to get tech, I can pull out the BP and string some webbing on and be ready for my DIR-F class. hehe
I also own a number of their bags including the regulator, tradesman, a couple mask pouches, one for my Olympus 5050, and one for my mask, as well as a microchip pouch to store my dive computer in.
I think all of their stuff is great. I had a problem with my weight pouches, and was shipped out a new set before I even got my old set in the mail to send back to them. They are a great company and I think they put a lot of detail into their equipment.