I have 4 cats and a number of cat trees/condos and this is one of my favorites. It was super easy to assemble, it's surprisingly stable (no wobbling at all even with 3 of them playing on it) and the cats all love it. I bought this specifically to challenge my most acrobatic cat & she adores it. There's plenty of sissel to climb/scratch and the color is much more neutral than I expected. I removed the ladder because it was too short so they all just stepped over it, which was dissapointing since they love to climb my real ladder! The only negative is that it's tough for my 18 lb boy to navigate (though he loves it anyway) because the shelves/levels overlap each other so closely that it's tough for a big cat to climb down. My cats won't lay in the hammock or the dark brown "bed" towards the top so I fill them with toys and they love fishing them out!