I'm clearly not from Southern CA, but it looks like he's peddling (I hate the term "linear", but I'm going to use it) "linear" junk. He over-emphasizes backspin
far too much, and the demo videos on YouTube look like a swing down barrel path, which is anything but high level.
He doesn't understand that "squash the bug" is bad. Apparently, he thinks it's part of a good swing (as is shown in the stride, hips, hands video). The guy is stuck teaching what he learned as a player. Hitting down on the ball is great for ground balls, and this guy seems to be unable to understand that. Watch the video. The second swing is... better then the first and third ones.
http://www.youtube.com/watch?v...=channel_video_titleNow personally, I wouldn't waste your time with this guy. I would get my hands on Epstein (best widely available MLB swing material) and see if you can find an Epstein Certified Instructor, if the prices are close to each other.
In summary: Stay away from this guy. He will kill your swing or your son's swing.