I recently wrote a brief review about this GPS watch.  I mentioned that I’d had a few niggles with it, but was generally happy with it.  After running my first marathon at the weekend, I have now changed my thoughts. It’s a Piece of Crap. Imagine buying a bit of kit like this specifically to help train for a difficult event.  Like, say, your first marathon!  Imagine it being fairly well-behaved, with a few quirks that...