This DVD may be useful for beginners who are lazy to check out the manual or even the workshop tutorials. There really exist types of people who can't get much from reading, they need something to be explained to them visually.
However, on a negative note, at least with the demo video at the site, I think the presenter jumps from one part of the topic to another, which is kind of the opposite of how live (or video) education should happen. It should be structured, sequential, logically-connected pieces.