I have a Pro Plus 3, so I familiar with the Oceanic programs and menus. The computer has performed flawlessly. While I am happy with the PP3, I would like to get more streamlined and the PP3 is a big piece of gear underwater. I am thinking about replacing the PP3 with the AI - Oceanic OCi wrist computer and a independent hp hose and 2" spg gauge. Very interested in opinions on either computer. The reason I really like the AI computers is because of the ability to download every dive with the real time air information, at any given point on a dive graph. To me it is interesting and helpful feedback.