Absolutely love this. I have a huge litter box that usually has a hooded top on it but I had to take the top off for it to fit. The middle section is optional - my litter box is 18” so I didn’t install it, instead I added some curtains at the front to keep my dog out. My cat loves it and it’s big enough to put his food bowls and a bed on top of. He weighs 20 and eatssleeps up there during the day. This is really good quality material and was surprisingly easy to put together. Regarding the doors being uneven, you just have to screw them in correctly after lining them up. I put this together by myself and it took maybe an hour.