Can I just tell you that my husband had a hard time putting this together with two curious cats climbing all over the parts, pieces and boxes. This is such a great value, I was shocked. Anytime I've looked at a major retailer, I get carpeted wood for over $100, this Tower delivered. We assembled in about 30 minutes and it's light to move around. We now have two very spoiled cats. Pros: price, product and assembly. Cons: it will make you want more cats