It's a great all around fitness/smart watch and mine stays on my wrist 24/7. I like that it geotags your entry and exit! However, I always dive with my Teric for deco and wireless AI. If I am on CCR, I dive with another two Petrels in addition to the Descent and Teric.
Pete,
Do you mean that as soon as you ascend to the surface, it will automatically take your GPS coordinates? I have no idea what other dive computers do in this regard, but this is a must feature. As I dive Shearwater, I will buy a dive computer just for this feature.