I was using an Oceanic airxs, I liked the idea of eliminating a hose on my set up. I deicded to switch back to the "traditional" set up. While the airxs was adequate, it didn't breathe as well as my octo. I do a lot of deep dives and felt better about having a good breathing reg for my back up. Besides, have you ever tried to breath off your inflator hose reg while trying to vent air from your BC?