I'm VERY pleased with mine. Just for notifications alone, it's worth every penny.
Today I discovered it taps me on the wrist just before a junction when using maps. Love it :)
For those of you saying it's a "fad", how very wrong you are. In-fact the reverse is more likely, with the bulk of the processing power eventually on your wrist, and an external screen which replaces the iPhone. Long time away sure, but I see that happening.