Forgive me if this has been mentioned. I could not find it in a search. There are reports of lock failure of some inReach units leading to at least one SAR response.

Early Report
http://packrafting.org/forums/viewtopic.php?f=31&t=5732

Roman Dial site
https://packrafting.blogspot.com/2017/09/inreach-fail.html

Garmin Response
https://andrewskurka.com/2017/garmin-responds-faulty-sos-lock-button-inreach-se-explorer/

Thanks for posting that!

Yes, thanks. I carry an inReach on a regular basis. I have had no unintentional emergency calls, but I will be more careful in how I carry mine.

Now I am absolutely sure that I will not purchase this device.

Agreed. Perhaps the money that would have been spent on such a device could be better utilized in other emergency items?

If all you are looking for is an emergency beacon (read PLB), then the inReach is not a good option. The inReach allows for 2 way communication which is not based on a cell network. It also allows for near real time tracking of the person. In addition it has a PLB function. As has been stated numerous times in the past, many rescue personnel would rather you have a 2 way communication capability than just a PLB. I think that with some care in how it is carried or packed, there is little to worry about. I have been carrying the newer version of the inReach (the Explorer) for several years with no mishap. The tracking and 2 way comms are near priceless when needed, and no cell phone can be counted on to work in as many areas as the inReach.

If you are venturing beyond cell phone coverage, and need a communications capability, the inReach works. Now we know that it may require a bit more care in how you pack or carry it. That information is helpful.

Note that this references the 2 generations older devices. The current inReach made by Garmin is a significantly different device and does not have this issue.

Having some means of signaling distress is, IMHO, essential. If I were king, I would make them mandatory if beyond cell phone range. If I were king, I would change a lot of things. :=)

What device you choose depends on your needs. The most basic is a PLB. It summons rescue, but that's all it does. Devices such as SPOT and inReach and a Sat Phone cost more and do more, which may or may not be of value to any particular person.

As I understand the issue was with the DeLorme InReach and the current model is the Garmin InReach SE & Explorer — significant changes.

I carried the old, original inReach for a while as well. I never had any problems. They were networked, so I could track all of them from mine. It was a nice feature.

I must say I am not impressed by the manufacturer's response cited by the OP. I was venturing into the wild well before PLBs came about, and so far I have cheated death -usually by preparing carefully and exercising good (well, good enough, anyway) judgment and making sure my skills were up to the challenge.

I wonder how many people acquire a PLB as a panacea, thinking that when they get into a tight, they will just mash on the button and the Ready Red Hot Rescue Ranger will appear in a flash? Lots of people are far more rational and there are circumstances where I would certainly advocate a PLB, but basic skills are just as essential as ever...