I also use the older (yellow) inReach SE and absolutely love it! I've never managed to trust the SPOTs as there is no confirmation your call for help has been received. The two-way messaging of the inReach also lets you communicate with the emergency centre to give them more specifics on your emergency so that they can cater rescue efforts to that. I have used it on multiple week-long backpacking trips with great success and even to send "we're ok" messages. A couple of summers back we spent 7 days on Nootka Island. The trail got closed half-wy through and they wanted us to evacuate, but let us stay as we had the inReach and could check in with the Ministry of Forests a couple of times each day. Even for day hikes (assuming one's not on the super touristy ones), I wouldn't leave home without my inReach.