Solid and had precisely engineered parts. It went together easily. Beware of this major issue, though, when you build it.

The two diagonal back panels are —nearly— identical and they can easily be installed swapped or rotated. You’ll find out they’re swapped when you go to install the left shelf and find that the left, rear corner shelf support pin hole on the swapped left diagonal side piece doesn’t line up with the notches in the underside of the shelf. You’ll learn this, of course, after you’ve put on the top and possibly even the doors. I did it, but luckily i’d only put the top on.

That aside, it was a pleasure to build and I really am enjoying it.