The material is good, but Lennart is really a very poor teacher. Good luck trying to understand any
of the moves from watching these video. It is really sad, because the quality of the filming is
good. The angles chosen are just awful, and his explanations quasi in-existent. My guess is that if
you can truly understand anything from these videos, it is because you already mastered the moves.
This being said, if you are willing to put hours of your time trying to create your own techniques
from the tid bit of info you gathered from these videos, you could develop some good material.