My cats and I love this tower. It was easy to assemble and has a beautiful, symmetrical design. I bought it as an open box item, so feel very satisfied with the quality for the price. The base and bottom perch are broad and sturdy, neutralizing some wobbliness in the higher perches. I have it placed in a corner where two walls brace it for additional support. I have two active male cats. Both of them enjoy climbing and lounging on their new tower.