I like this - i think it's a really strong ad - but there are a number of comments that seem a bit meh, which I think is fascinating.
And mainly it comes down to the fact that he didn't actually walk the whole way - like, no kidding.
Technically it's still an awesome feat, but the journey they want the viewer to take needs faith, not gadgetry, and the behind-the-scenes kind of destroys the myth of the video.
A lesson perhaps that, at a perception level, lo-tech and true beats big and fake (even though this isn't 'fake' it's amazing)
All very interesting...
Here's a nice maps mash-up they made of the trip:
Here's the making of: