Components themselves are good
I'm absolutely thrilled with the wooden parts, and so are the cats.
Unfortunately, the screws that came with it are poor quality. They're so soft that, even with great care, the screwdriver easily strips them. I had to replace two of them (and of course, there are no spares included, so I had to buy suitable ones myself). And now one is stuck in my wall with a completely ruined head—I can't screw it in or out. Brilliant.