I don't know if this video has been posted already. I enjoyed it. Nice endorsement of the DF500 at the end.
I have to say, my first project with the DF500 saved me a ton of time and the joints were perfect. I think the only way you truly appreciate the Domino system is if you have already done a lot of M&T work by other means (by chisels and saws, by router and jig, etc.).