This is really well designed and very easy to put together. Our cat is used to an open top litter box but we had had enough of the litter showers. For the first couple of days, we left the door down and he went in without an issue, and then we closed the door and he adjusted to everything just fine. The litter shower still happens but it's contained within this box now and it's easy to vacuum up when we are cleaning the litter box. Love it!