On the hoof Madcap Flare screencast

In my last podcast I talked about a couple of unscripted screencasts I'd recorded for colleagues at work, to show them how to use some Flare extensions I'd created. My question in the podcast was: is something like this (knocked together very quickly) good enough to put in front of paying customers - or potential customers?

Without seeing/hearing the screencasts it's not easy to form an opinion, so I thought I'd let you have a look. Let me know what you think. Are you put off by the ums and ahs, and the little mistakes I correct as I go along, or does it lend authenticity to the demo? Personally, I wouldn't mind seeing a demo like this as part of the user assistance for a product. I think the effects that Camtasia lets you add (zooming in and the rotating cube effect) lend a little polish to make up for the ad hoc presentation style. But it's probably not everybody's cup of tea. What do you think?
 

 
Please note:  When I recorded this it was purely meant for internal use within my company. However, I've had a look at it and I'm confident it doesn't give away any corporate IP. It does, however, reveal (if you look closely) that I had to Google to find a solution to a buzzing microphone shortly before starting the recording!  :-)

Alternative larger format video  (you'll need to wait a little while for it to download, but the picture quality is better).