I have two cats, one quite large and the other small, and both seem to love this product. My cat came from the Humaine Society, and in her cage was a hammock. I knew she used it a lot and had hoped she'd use the one that came with this product. I was concerned when I read reviews that cats never used it, but to my surprise she loves it, both cats do acually. I was also impressed with the sturdiness of the product.