Bests & Worsts Reviews from Amazon

I had this tree for less than a week. I assembled it, and it felt very wobbly. Broke it down, started over, and it was still wobbly. I put it in the corner of a room with added support on two sides from the walls. My cat was apprehensive about the tree because it was so wobbly. I've noticed that even some of the positive reviews of the tree note that the tree is wobbly. If it's wobbly when you first set it up, what's it going to be like a few months later? It'll probably topple over onto someone! It's not made to last. Today, I read a recent review that advises using some extra washers and nuts to reinforce the shoddy construction and make the tree usable. After scrolling through a couple of other reviews, I've seen others say the same. Might be indicative of a problem? I was going to disassemble the whole thing and put it back together with the extra parts. I unscrewed the top perch. The screw mount at the bottom of the perch had burst through the cardboard-like material. I've attached a pic. I'm so glad I discovered this issue on my own before the tree collapsed on my cat. I see that another customer had this issue, and the perch fell on her cats. Poor things! The manufacturer said that it was caused by "overtightening upon installation." Well, why is that even possible? Also, you wouldn't need to "overtighten" it if the tree was actually stable in the first place. I had cheapo Armarkat tree for years. It cost about half the price as this tree, and while it didn't look pretty, it was much more stable, and it never broke! I'm sending the broken tree back.