This was my first dive computer, and I choose it for the air integration and the great sale price. So far, I'm very happy with it. The AI doesn't always pick up out of the water for some reason, but I've done 30+ dives on it so far and under water it is fabulous, consistant, and reliable. Has some functions, such as the dive charting and air consumption calculations, that I didn't expect. I don't think I'll use a lot of what this computer does, as I'm primarily a recreational diver that doesn't plan on getting very technical, but its nice to know it can if I want to. The bluetooth connection to the Mares dive app on my phone is great, although I think I'm stuck with Mares if I want to keep my dives all in one place as I haven't figured out a universal compatible system yet that would import the data. But overall it was a good buy for me.