I've had a few stabs at doing demo / review vids just for fun - examples [url="https://www.youtube.com/watch?v=uLyBAFiJRJY"]here[/url] and [url="https://www.youtube.com/watch?v=Jq64dgNIrD8"]here[/url].
(They're Sunday league compared to what Ed Friedland and Dan do.)
I get negative comments, some of which are justified - they could be technically better, and I'm still working on it.
But, I also get a people complaining about my lack of AWESOME CHOPS. This doesn't bother me... it's not what the videos are for. Thankfully, quite a few people also seem to have enjoyed them, so IMO it's worthwhile.