When I saw this I immediately bought it.
I sliced the parts in Cura, PLA, standard resolution, 50% infill, and it took roughly a week to print all the parts.
It was somewhat difficult to assemble the box on my own, I had to put some boxes and other stuff around the boards to lock them in place while I put the corners in together. Once I assembled the top part the rest was easier.
The box looks and feels sturdy enough, but nevertheless I'm a little bit scared of putting my printer on top of it. I'll test it in the upcoming days.
The parts for the interior shelf kept sliding down, so I really tightened them up. I'm not sure if it's because maybe the boards aren't completely straight or something like that. I'm going to check it to see if I have to make any adjustments.
Overall, I'm pretty satisfied with the results.