Not impressive at all. It's just interesting that the designer tried to use technology from 1996 to make something with taste in 2013. However, it might be the simplistic way to create animation that can be autoplay in iPhone Safari. Using video needs users to click play to start.
Raising hand as one of the suspicious number of very new commenters. :p As suspicious as I look, however, I don't belong to them and it's not my first post either.