The product is quite good overall. It uses various concepts of mechanical engineering such as weight-bearing beams and cross-sectional load balancing, to lend sturdiness and stability to the final product. This is actually very important in this case because the primary material is Engineered Wood, which in itself is not very strong.
But where it lacks is good instructions for assembling. I had to re-assemble some portions of it many times until I could get it right. And some instructions are actually impossible to follow, such as the ones given for installing the glass panels. So there are various things you need to figure out on your own which leads to a lot of wasted time. The instructions could have been made better very easily.