DON"T EVEN THINK ABOUT IT!!
I bought this on the Kickstarter campaign. It NEVER worked as demonstrated and I spent more time cleaning up cat litter that drained out the bottom than I ever have just cleaning a cat box.
After four days of trying to make it work according to the instructions and online videos, I threw it out.
It's a cat box that has holes in the bottom. Enough said.
I'd say both yay and nay.
Yay - quicker than scooping
Nay - no cover yet and my cat likes to dig and kick the litter out of the box, even with the guard
Tips:
For the person that said it was a cat box with holes, you aren't using the three trays correctly. They have to be oriented correctly or the litter will just flow straight through. The top two need to be oriented 180 degrees to each other, and the bottom one is oriented the same way as the top. Lift the top tray, sift and dump the clumps. Now take the top tray, turn it 180 degrees, and place it under the other two trays...
Correct, it takes a bigger bag, or you can angle it to a corner - over the other two trays to minimize spillage.
If you are scraping urine, either you're not putting enough litter in the box (Tempting, because there isn't a cover and kitty might be like mine and be a digger and spill over the guard), or you aren't using clumping litter. Needs three or four good inches of good quality clumping litter to work as expected.
Never heard of Van Ness boxes before but if they have a cover, count me in.
You all are going to think I'm crazy, but I just use regular garbage bags for the litter box. I have to buy them anyway and they're really strong. It saves money.