Pros/Cons: Garmin 86i

I was recently given a Garmin 86i to play with while spearfishing and kayaking. So far I think it's really useful and dig the SOS feature even though it's subscription based.
I do a fair amount of backpacking/survival camping in very remote areas as well so it's nice to have the security with it. I was curious if anyone had opinions for the pros and / or cons of this particular device?