I'm not supposed to give my opinion, but... :P Seriously though, it's great
I'm certainly not an expert on cat trees, this being my first one, but it worked perfectly.
I initially bought it because I recently moved to a new place, and instead of full glass doors I have regular windows, so I wanted something for my little Cleo to be able to both play and perch high enough to gaze outside. She loved it instantly, has been using it daily ever since I put it together, and the tree itself shows no sign of damage. Worth every penny.