It's very strange (the guy wears black robes and you never see his face - there are altar type things and fires around him... kinda goth, kinda not).
In terms of the actual content, it seems to follow his book fairly well. My biggest problem with it is that all of the scale info is shown on the piano. He doesn't get to anything guitar until halway through - making it more of a "keyboard scales" grimoire with "bonus guitar info"
I haven't been all the way through the DVD, just skimmed a few sections, but I wouldn't recommend it because guitar is more of an afterthought.
I know it's supposed to teach theory, but they should show the scale on the keyboard and then show it on the guitar...