I have six cats and they each love these pieces. Two typically are not climbers, but after setting up the shelves; even those two take well to them. My only advice would be to buy separate anchors if your walls are thin. The anchors in the packaging did not anchor well and shelves fell out of the wall once two of my cats jumped to and from them. Other than the anchors; this has helped keep the cats active and from fighting with one another.