I found the video very interesting thanks for sharing. I understand why some people find his voice irritating, but I think he is just trying to lighten up his videos and I don't find it particularly annoying, he actually reminds me a bit of the late Steve Irwin.

For those that can't handle any eccentricity should check out the A500 teardown from "nathandumontdotcom" which is also a good teardown video.
http://www.youtube.com/watch?v=VD-9JjdMVZI