I have not hit the button intentionally, but have been on the other end....
I had a first generation spot, actually two. Gave one to a friend and threw the other in the trash. They were obviously not ready for prime time... at least not for a patience challenged individual such as myself... I figured self reliance was a better tool, and swore I'd never own another.
Fast forward several years, I was in the barn working on the cub when I got a text message. It was not only from an odd number, but from a weird prefix, so I almost didn't even look at it, except I caught the word Cylinder...
So after piquing my interest, I opened it, and it said "do you have a spare O-320 cylinder and can you get it to the Grand Canyon.
That was enough to catch my attention, so I replied "Who is this?"
Turns out it was a very near and dear friend of mine. He primarily resides near Wickenberg, AZ but summers in Nampa, ID and runs his exp Cub up there every year to have handy.
This time he was over the Grand Canyon when a cylinder let loose. As luck would have it, he hit nearest, like we all would do, and there happened to be an old mine in his database that he had dropped in on in the past, and it was a mile or so from his location. He dead sticked in, and the landing was uneventful, but the location was not exactly peachy.
His text's came through and as I digested the information, I concluded that although I had a set of O-320 cyl's, and he was surely welcome to one or all, perhaps it'd be best if I just flew up and got him. I'm not the sharpest tool in the shed, and I would certainly forget
something ? ring compressor, oil, heck I dunno... I was just certain that waiting a day or two to plan it out would be better than grabbing a jug and hitting the road..
Turned out to be a really good call, (totally accidentally though) because G's motor is actually an O-340. And while they are technically O-320 Jugs, the skirts on the pistons are actually clearance for the longer stroke... what a mess we could have made

We agreed the best plan was to secure the cub, and return better equipped.
So his track and coordinates came through, and not two hours later I was parked next to him in my 180. This is in a hole in the Grand Canyon!
A night there would have been easy peasy. A few days without water would have been a different story. That weekend he had secured the proper cylinder, and enough tools to build a cub, and we went back. He installed, and I learned. He is an amazingly talented pilot and mechanic, so I knew that trying to help, would yield nothing more than a missed opportunity to learn.
The next time we chatted he sung the praise of the in reach , and while I'm sure he was just trying to put a bug in
my ear, he really didn't have to... The events of that trip were enough to convince me... I use mine way more than I would have though. Very handy tool!
Prior to the in reach I always carried a hand held on me. I once cartwheeled a cub on the nelchina. landing on it's top trashed the comm antenna and I wasn't too hip on firing up the electrics anyways, as all the fuel was trickling out of the caps. But with the handheld I was able to talk to a passerby 172, who was heard by a trooper in a cub. Not 45 minutes from upside down to having both a top cub and an R44 parked next to me. Caught a ride to Palmer with the 44 to tend to a busted wrist.
Radio worked, but the in reach is an infinitely better tool.
Take care, Rob