This is the best cat tree weve ever purchased. We have two large cats and they can both fit on this tree very happily. They dont tend to use the tunnel at the very bottom but everywhere else gets plenty of use by both. In fact its the only cat tree both of them will happily be on at the same time. Only issue weve had is our older cat tends to use the fabric sides of the box to climb up and it has started to shred but weve since found a way to help slow the damage down.