Ah here it is.
http://www.americanstandard-us.com/tools/bestflush/default.aspx
click on flushing system in action to see the video.
After I installed one of these I told a co-worker about it, he bought one too and says the same thing, you can't clog it. IIRC he paid close to $250 for his, guess I got a deal at $225 at home depot.