Only suitable for small cats. My cat is not small. She has a long body and uses the two scratch posts regularly. The house is smaller than I'd anticipated (and I had read the measures) and there is no way my cat will go inside it. The platforms on the top of the scratch posts are not fully stable. I used treats to coax my cat onto the platforms and there is definite movement, hence I had to used treats to get my cat onto the platform. I will donote this to a local cat charity.