My cats love this thing.  I have a 15 lb. older cat and a 5 month old kitten, and they both really enjoy it.  I was worried that it seemed a little wobbly, but even my old lady fat cat can jump to the top with no problems.  Easy to vacuum, looks nice, doesn't take up too much space, and the kitties love it.  GREAT deal for the price.  Easy to setup.  Would definitely recommend this product.