Nice way to store your paper, I would not use them though for the paper dynamics as suggested in the video, they don't work well that way because it makes it sloppy and hard to get the paper in and out of the stacker.
These pages are tough. I like how thick the plastic is and that the page is larger than 12". It makes it really easy to store your pages without having to cut off the manufacturer tab. The only draw-back is that sometimes the flap is cut kind of crooked, so you might have to finagle the upper left corner of your paper in. No big deal, really.
Fits each group of paper perfectly!!