My only critique of this cat tree is that it does wobble a bit when the cats jump on it or are going from ledge to ledge. My cats are also only like 10-12 pounds so not huge.  The wood and everything seems very solid but when you get a cat on there it just moves back and forth.  I had one of those ugly carpeted ones before and while it was gross to look at, it didn't wobble nearly as much.  

I like that the carpet pads are removable.  I think the ledges could be just a bit bigger (for sitting).  The box at the bottom is great but I think cats prefer to be higher up so my cats haven't taken a liking to it quite yet.  

Also the wood looks almost reddish but it's actually a dark expresso which I loved.

Pros: Sleek, removable carpet pads, espresso finish.  Wood seems like higher quality.
Cons: Wobbles - not as sturdy as you think when a cat moves on it.