I have three less than one year old male cats, who chase thru the house like race cars, typical males. They love to climb and see who gets to be the "King of the Mountain". One of them is always sleeping on the top pearch where they love to look out at everything that is going on in the family room. I picked this style because of all the scratching posts which are used all the time instead of my furniture. So far in their running to the top, they have not knocked over the cat tree. Very pleased with this product.