[c3534l]

That video is really melodramatic. It's a guy slowly ascending a staircase with these crazy dynamic shots and music that would be more appropriate for a compilation of airshow maneuvers. That said, it doesn't look technologically like it's all that interesting unless they've managed to make it super-cheap.

[kragen]

If it's at all affordable for people who are confined to wheelchairs, a working stair-climbing wheelchair would be a life-changer for tens or hundreds of millions of people. Airshow maneuvers, by comparison, are pretty, but also pretty unimportant.