Early adopter here. My mini is hammered. Probably has over 3,000 miles on it. I recommend the screen cover and silicone case. Takes a licking and keeps on ticking. I never ever track. Just use it for coms in a pinch back to home or (the real magic) when you con all of your friends to get one. The mini to mini coms are priceless. Things:
Download a base map into Earthmate and test it to make sure you got the right one before you leave. Good lord do not rely on Garmin’s crappy db maps for your normal navigation, that’s where lots of people go awry. The GPS functionality on these is diffidently not its strong suit. Download USGS quad based maps. I like the shaded relief ones and I use a separate app for real navigation. The background maps for use with the mini (via bluetooth to your phone) is amazing when your buddy gets into a pocket of fish at 10k feet, you are back at camp after a bath and sends you a message and you have his location. Grab that Tenkara and go get some pissed off cutties with your buddies! Also helps with day hikes and group moral when you are late or went a little too far. Or obviously if you get separated etc. Amazing and I think the min-to-mini is the real magic of these devices.
I leave the device on to receive messages on trail. Saw some commentary wondering why you have the device on except to track, well I never ever track and leave it on without tracking so that I have coms. As in: coms is the real purpose of these little wonders. Use other things to track and navigate. I can get almost a week with six hours of wake time on trail. easy as hell to recharge via usb.
Unlike others, I don’t think the messaging is really reliable and the app interface is really dumb in some ways. Many times I get messages that are just some sort of hieroglyphic square. People get really confused replying they try to reply to you “phone number” which isn’t the proper way. They need to reply to the message and the number will change. So it’s thread dependent. You need to tell your contacts this. Also, the device gets all the messgaes and the app only gets some. Really stupid. No satellite constellation screen or really forceful confirmation of successful transmission. These issues plague almost all of these 2 way devices.
General gripe: I am overall super disappointed in all satellite coms. The game was so limited it seems they are all resting on their laurels. Globalstar hasn’t released a new device in a decade. The modem in the mini is now very long in the tooth and Iridium has devoted all of their new super duper high bandwidth “Next” constellation to industrial and military apps only, not consumer level. Thuraya, which has some really interesting form factors, isn’t in North America. I had a Spot. I’ll just say NO THANK YOU. Elon Musk is about to take everybody’s pants off in front of the world with Starlink, which I think will be one of the biggest communications companies in the world some day very soon. This whole conversation gets really interesting within a year or two with ubiquitous data all over the planet. Until then, enjoy your decade old, super slow satellite tech.