I have the Mini2. My use of it may not be directly related to your ask (considering the forum) but I'm an avid small stream fly fisherman living in PA. Whenever my schedule (and wife) allows, I hike to streams buried deep within thick canopy state game lands; always solo. An out-and-back or loop as long as 10 miles completely off the grid isn't uncommon during the longer light days. Quick count is about 75 solo trips over the past 2 fishing years.
I've been carrying a Mini/Mini2 for the past two-plus years and I absolutely LOVE having it with me. It provides peace-of-mind for me and my family and I'm confident it'll be an effective service should something go seriously wrong. In fact, when hiking I actually rely on other services/apps - AllTrails and GaiaGPS - to actually plan and navigate along my route. Here's some feedback from my experience:
Even though I don't rely on the Mini for navigation, I always activate tracking and compare my route to my primary navigation apps. Even in the densest cover, there's very good alignment between the tracks.
Battery life is exceptional. I estimate I burn ~15-20 pct of battery during a 9 hour trip in heavy cover with a track interval set pretty aggressively.
App-based interface is intuitive and the messaging support when off the grid is pretty good. There's certainly a bit of a delay especially when under cover but I often trade texts and send checkins to my wife throughout the day.
I love the size and if your budget allows, it's worth paying for the Mini2 vs. the mini. Lots of reviews out there but the big differences for me between the two is the messaging support and the USB-C interface on the Mini2
SAR insurance in integrated and cheap.
My bottom line would be if you're looking to pick one up for sattelite messaging and SOS, I don't think you'll currnetly find anything better. If I break it, I'll buy another one without considering an alternative. If you're planning on it being your primary NAV device, there's a lot to be desired relative to the screen size and on-device interface.
There's TONS of videos out there that walk you thru the good and the bad but here's a video absolutely worth watching about what actually happens when you hit the SOS button: