Coconut water, what's the hype?

I've seen coconut water advertised so much, I wondered if it's as good as they say it is. Plus, is it something I should be drinking. Here's a video that explains it.

http://www.youtube.com/watch?v=njQ7bZ5hyvo&feature=player_embedded#!

http://livli.com/viewPost.action?post=6049