Opinions about Kun Tao?

I've been doing a little research on this and it's really interesting. In my opinion, it seems to be less about hand-to-hand combat, and more like a method of controlling bodily functions and pain. Unfortunately, I have neither practical experience with Kun Tao nor do I know anyone who's studied Kun Tao. I'm usually all for a stupid Chuck Norris answer, but I'd like real answers and opinions for this one. Thanks!