I rock a one point, but with no wear near as many buckles and what not as the one displayed in the video. I love one point slings. Mines very simple, its attached to the back end of my M4 reciever, has one strap and one buckle. I can swing it around with ease, it comes off quick when I need it to. I will probly continue to use one point set ups as often as I can.
If you wondering where to get one of the slings shown in the video, the giant banner behind the gentleman demonstrating the sling was the hint.