From the time of putting it together it was clear that this is a cheaply made item. I wish that were the only issue. Not only is it cheap, it is profoundly unsafe. 

I happened to be home when the incident happened. I heard our cat hissing and shrieking. He was hanging himself from one of the little dangly toys hanging from the upper levels. As he thrashed, the entanglement got worse. If I weren't home, I would have come home to a dead cat hanging from the cat tree. 

In my efforts to save him, he was panicked and bit me in the hand. Before I went to urgent care, I cut off all the little hanging toys. I've been on antibiotics for 10 days and may now have a bone infection from the deep bite to my hand. 

Do not purchase this cat tree under any circumstances.