Kramer might be selling it a bit in that video, but he's an expert at what he does. He's using a mass-produced replica of one of his own knives there, but it's one that he expertly sharpened himself to a razor's edge. I'm only just starting to get into using whetstones to sharpen my kitchen knives, but they're already twice as sharp as when I bought them. The way Gordon Ramsay hacks away at his honing steel makes me question whether he knows anything about knives at all.

Here's a CBS news piece on Bob Kramer and his knives:

http://www.wimp.com/incredibleknives/