Hi. Yes we're a supplier (albeit hardware agnostic but we do supply some devices). I'm sure Peter knew I'd be wading in, uninvited :) Because I'm passionate about knowledgeable advice based on real experience. We are not fans of Spot devices in a commercial environment.

There are a number of independent reviews which have been done; copy and paste the link below for a really thorough review.
https://www.outdoorgearlab.com/topics/camping-and-hiking/best-personal-locator-beacon