I was really excited to set this up since I just moved from a large 3 bedroom to a studio apartment with an active, full of energy cat.  I thought it would help him get some exercise without all the space to run around.  My cat loves sleeping in the condo, but sadly he has no desire to jump around and play on this.  He does really like the fabric and started rolling on the pieces before I even put them together.  Once in a while he'll sit on the upper areas, but it's rare.  I removed the upper tube because it just got in the way and he had no interest in going in it.  He played with the hanging rope once sticking his head through the hole, but there is NO WAY I'm getting him in the hammock (which I figured).  :)  It's a great product, but I think it looks more exciting to me than to my cat.