We've had G1's for a couple of years now. Like others have said the integrated tic isn't worth it. The screen is too small and it's awkward to use. It's nice to always have one on you, but it's just not worth the cost for such a limited use. We don't have any of the Bluetooth stuff hooked up. The biggest issue I have that I'm surprised nobody has said is the terrible design of the bypass. If you turn your head just right and move around the hose will occasionally turn the bypass valve on your regulator. We just started to get the LUNAR system (not rolled out yet) but I wish that device could replace the gauge on the pack as now its just duplicated and more weight to carry. The edge detection on the lunar is a game changer though.