I love this tutorial!  Looking at this object as it develops in the video, I can see a lot of possibilities for how to use it, even before you do any subdivisions to smooth it out.  If you take the state of this mesh right before adding the subdivision surface modifier, you have what could become a very cool medieval weapon of some kind.

I also agree with DaremoK3, your tuts are awesome, Luxxeon.  Great pace, and well explained, and detailed, with lots of unique ways to create what seems like complicated geometry.  I think showing the screencast keys would be the only thing I would suggest to improve.