I've been doing a lot of reading on these. I believe the article in the Original Post (OP) is a good start. I'd add the recommendation to read/review these as well:
http://www.outdoorgearlab.com/Personal-Locator-Beacon-Reviews
http://www.backcountrychronicles.com/acr-mcmurdo-personal-locator-beacon-comparison-review/
It should be noted that there is SARLink View (part of the article in the OP) and also a AquaLink View; both are water-resistant while the AquaLink is buoyant (can buy a bouyancy sleeve for the SarLink View)
From everything I read it seems to me, and for me:
- If you want to get saved, get the ACR (higher wattage output, more GPS channels, no subscription req'd, you are registered with NOAA so they know who they're SAR'g, etc)
- If you hope to get saved, and 2-way messaging is critical for your needs, get the DeLorme
Right now, I'm of the opinion that an ACR PLB + an HT I already carry (usually there's some repeater I can manage to hit) provides a combination that does what I need.......but still reading and trying to figure it all out.