I got this a few weeks ago as one of two Hanuka gifts for my cats- a six month old calico female and my 15-20 lb male tiger.  I had gotten this smaller furniture with the younger cat.  She was playing with the pieces as I was putting them together.  Actually once I got it assembled she walked away.   My male likes to stake out all territory, so he likes to sit either on top of the tube or lay on the bed-hanging over it of course.  Since the piece is so well made this is not an issue.  She now sits in the tube and plays with him while hes on the bench.  Quite funny actually..