That actually does help as >12hrs is definitely the exception for me. Also, the revelation that the battery on the Garmin is serviceable may put them back in the running.
So, now I guess I’m back to waiting for @dcrainmaker to update his comparison. Sounds like he’s super slammed with product releases, but I guess, as long as I don’t need a ROAM2, there’s no immediate rush. If I were slightly more evil, I would buy one from REI and abuse their return policy, but alas.