PGW, the Spot units get good reviews from people who find it very cool to be able to track someone's hiking trip, but it has enough bad reviews about the coverage and reliability that it probably wouldn't be good to think of it as a real distress call device.
It was those kinds of reviews that turned me away from a nice cheap Spot to a rather pricey ACR unit that fits in the PFD pocket or chest pack.
I rented one of those for my first solo season in Alaska and the price made me realize that two more trips would completely pay for a my own, self-registered unit, and so I went straight to eBay.
Though, I'm not sure if it would actually be able to send my GPS coordinates through the trees on Pit 4 . . .
