When I decided some sort of PLB would be a good addition to my gear .... and after doing a few searches online, I had to step back and decide exactly what I wanted the device to do.
It was like going to an RV trailer show with the idea of a simple place to sleep and exiting with whole different set of ideas once you see all the bright shiny baubles.
In the end, I figured all I wanted was the "emergency exit plan" .... I don't usually solo, like the idea of disconnecting and just getting absorbed in the surroundings.
What I ended up with was an ACR ResQLink (
https://www.acrartex.com/products/resqlink-plb-375/ ) ... these units don't get as much mention in discussions, not sure why. They cost a little more, but you just buy them, register them and you are done. No plan, no further costs .... just toss it in your pack as insurance, in case something goes sideways ... if it does, just push the button to call help.
When I am sitting at the fire or under a tarp in the rain, pulling out some electronic device to check my messages or take a call, just sort of defeats the reason I am out in woods in the first place.
I do see the logic in maintaining 2 way communication in some circumstances and don't mean to suggest in any way it isn't also a perfectly valid option ... but I don't see PLBs as a "one shoe" fits all situation. You also need to be familiar with the local area rescue "rules", most of my adventures are here in Ontario ( we are blessed with an abundance of beautiful places to visit), so cost of rescue isn't an issue (although in some cases I think exceptions should be made).
Know what you really want from your PLB and then do your homework, there are options.
Brian