Not for us
I was hoping this would be the one, unfortunately not, our cats have a tendency to P on the outer edge of the tray, not out of the tray, but the inside of the outer edge, and this doesn't seem to cope with that, it goes to the base and sets like cement, hell of a job clearing it out, keep thinking the scoop will break, but sometimes they do go in the middle, and when they do it does quite well at catching it, and clumps well, but on the edge, or it reaching the base it sets solid, so OK for some