My cat loves this condo. Riley is not interested in going inside "cubbies" as I learned from his first condo that he has outgrown. So I looked for a large tower with only open platforms. This fit the bill. It is very sturdy and Riley is very happy using all the levels. I do find that the carpet seems to shed a fair amount but for now I am chalking it up to being new and hope it subsides soon (time will tell).