We have 2 smaller cats ... 2 years old and 3 years old ... each less than 7 pounds. They love this sphere. They climb on it and nap in it. It was tricky at first for them to jump into the 9" diameter front opening that is 29" from the ground. I put a stool in front of it temporarily for them to learn they could jump inside. Now they jump right into the opening with no stool. I love the look of this cat tree ... kind of modern but with a cozy, basket feel. I would recommend this tree for younger, smaller cats. It might be difficult for an older, heavier cat to jump into the front opening. (There is also a 7" diameter opening on the top.) We have had this tree for over a year. It has held up well to daily use with some fraying around the front opening.