I have two adult cats (13lb and 11lb) and although they were hesitant of the cat tree at first, with some treats, they now love it! The sisal rope stands are perfect for scratching at any level. The platforms don't offer much cushion for lounging, so I purchased cat beds for the nest and top platform. I would agree that the base is relatively small and not too sturdy if the cats jump from the top level, but I keep mine in the corner of the room and it works well right against the wall. Overall, a great product and worth the price.