My cats love this tower. The platforms are spaced so it is easy for the cats to jump from one to another. One cat loves to grab at the balls in the play square. I do wish the holes in the side of the play square were a bit smaller to make it harder to knock the balls out (as I am picking them up and putting them back in frequently) but that may be the point...allow the cat to knock the balls out and chase them around the floor....which he does.