Been using a SPOT since 2007. My spot is on my pack 24/7 when I'm in the bush as well as the dash of my truck in many places and is always on the tracking feature as that way if I can't press the 911 or help button they can basically pinpoint my location. A SPOT with the tracking feature is only good if your capable of operating it to get yourself help. If your unconscious then can only place you at your last check in point.I've used it in basically all of Alberta, BC and the southern Yukon with no issues or missed check ins.