Massive and easy access for cleaning
We have three big ragdolls and didn't have enough room for two boxes, so we ordered the biggest box we could find - this one. Only needs changing every 2 days even with such big boys, and the top opens easily to give access to clean it without taking the top right off. A small ridge in the bottom is irritating when cleaning (the scoop gets stuck), and it's hard to close the clasps on the top (which I fortunately never have to open), but otherwise it's a fantastic box.