This portable, disposable litterbox is much better than I expected! I am transferring between residences, and this has been perfect for a temporary litter solution for my cats! They had no issues immediately using it, and the litter stays well contained. I'm sure if used extensively, there will be litter leakage, just from repeated entrances and exits by kitties, but for a temporary litterbox, it is excellent! [This review was collected as part of a promotion.]