I have watched 4 out of the 34 videos so far, but I am really impressed by the quality of the videos and the level of insight. He covers a lot of ground in each of these 5-10 minute videos.

I also love the video style. He speaks fast, and moves from one thing to another quite quickly. This is a great strategy on YouTube since its so easy to rewind and replay. He also includes a link to different sections in the video description (i.e. points in the video where he changes from one topic to another).