I got one for my Litespeed. It's a great headset, albeit overpriced. But I didn't get it just to get it. My original Cane Creek bit the dust. I don't think I would replace a perfectly good headset, regardless of how much better the Chris King might arguably be.

Also keep in mind that removing the old crown race from your fork, and installing a new one must be done with care. When in doubt, or lacking proper tools, have your LBS do this for you.

Bob