So far my boys love the tree. Algie, in the picture, is a little guy, but even our 12 lb kitty, Sam, fits easily in the tube and each of the levels. Lots of scratching and hugging sections and places to peekaboo with mouse toys ) There is a little bit of wobbling when they climb up to the top level, but considering it is about 6’ tall, there isn’t a way to address that besides anchoring each level to the wall.