I have 7 large cat condos in my house, most by Go Pet Club, and this one instantly became the favorite of my three cats. It's pretty sturdy on it's own, but I anchored the perch on the top left against the wall just to add a bit more stability because one of my cats is pretty big. They really seem to love the hammocks and the hanging beds a lot more than the standard shelves to sleep on. It's also by far the best looking cat condo of the bunch that I have. I would definitely recommend this to anyone who wants to have happy cats!