I have three cats and two of them are bigger than the average cat (not fat, just long and tall) So I was worried that they might not be able to get in and out with ease. But they have no problem at all plus they took to it right away. It is constructed very well and very easy to clean, just dust and wipe it down with a cloth. Not to mention how it helps sooooooo much with keeping the kitty smell contained and the litter they kick up and spill. I have had people over and they didn't even know there was a litter box in the house. 

I definitely recommend this product.