The video looks great. And if you did this 2-3 times a day, with fresh litter, it would work fine... for a few days. Then change out the litter for fresh, and enjoy another few days of hassle-free cleaning of your litter box 2-3 times per day. Then do a thorough cleaning every week or two to keep up this hassle-free cleaning.
...Else the whole thing turns into a %$$ sandwich. Top and bottom, which you are supposedly setting on your floor. Maybe the whole thing should just go in a real litter box, and you just toss each disposable tray as you go?
This Kickstarter will go nowhere. This lady and son should blow the money and the people who donated should get what they deserve. Maybe someone could go around and slap them on the face. And then offer them the Brooklyn Bridge for $20.00 cash. The first clue is the idea didn't work the first time, and the investor got screwed. The only thing they (hopefully) learned is how to personally make money the second time around, by screwing lots and lots of investors.