I have an Atmos 2 Elite and Im very happy with it. I like using air integrated because I dont like the big console, btw, I put it on a retractor and I clip it to my bc but if you do make sure you don't lose it (cost). One more thing, if you use air integrated make sure you put the receiver in Down position or if youre in overhead it might rip off, eek. Mine took a blow the other day from a flying tank that hit so hard it cut the alternate air source hose in half, they are susectible to shock, I thought it would be fatal, but it was fine. The softwares cool bc it shows a picture of your dive graphically, I think thats fun. Some computers dive more conservatively than this one. Last thing, the battery has lasted forever. I may change it just to make me not worry.