My cat absolutely loves this tower. Due to my small apartment, I had to find something short to fit below my window. This perch does that and my cat plays on all three levels. She loves weaving between the main support posts on the first level and spends the majority of her day dozing on the top.  

Pros: Came fully assembled out of the box
Cons: My cat loves to rip the carpet fibers out...she's created a bald spot on the corner. My cat's fault, not the products. No other Cons.