I have a 23 pound cat so needless to say it's hard to find a cat house for him. Everything in the stores were way too small for him and seeing him trying to fit in them was sad to see. So when I came across this one I was very excited to see how it would work out. When it arrived I was very happy to see my cat take to it immediately. The box is very sturdy and big enough for a 23 pounder to get in and turn around and lay down it in. The only problem is the bottom lacks padding so I just added a furry blanket down. He loves it!