The video is only 26 minutes long, so it's a short, but worthy investment!
I highly recommend that you learn the stitch. It lives up to its name and becomes a bit of a wool eater when you get about 20" wide. I finished my lap afghan at 36"x36" and it was taking about a 1/2 skein of yarn to finish one color strip. I adore this pattern and I will be making many more. I'm thinking about trying it without the square accent and see how that turns out. :) Should be fun!