The quality of the shelves is very solid. Commercially I have somewhat better seen painted shelves, but also cost the double or triple! The difference is hardly even perceive from a distance of more than half a meter.
The Assembly took no mask a little longer (here you could even consider a possibly enclosed), but anything is possible - you have to precisely measure and drilled.. . The screws and dowels absolutely fulfill their purpose and the shelves hold a few "twists adaptation" of the screws properly to the wall - nothing wobbles!
CONCLUSION: All in all, you get a pretty solid shelf for the cheap price! My daughter is happy - makes really good in the nursery! Would order again immediately!