True, right up to the point when it isn't. I've seen them fail, and I'm not talking about battery life either. And it was a Garmin.
Personally, I go minimalist with a Foretrex 401. High sensitivity receiver, but I can do without a map on a screen, since I always have a paper copy.
Really helps in the dark or in really thick brush like we had this past August. Hard to know if you're on the right route when you can only see five feet in front of you.
