I love these—I have two. They’re just melamine over particle board, but they’re on the higher end of the spectrum and ver nice for what they are. The drawers are smooth and I’ve got the lateral drawers stuffed to the gills without any performance issues. The lateral drawer has a caster underneath at the front center, which operates flawlessly. Just be aware that you cannot have a thick carpet abut the front or you will not be able to open the drawer when the caster hits the carpet.  I’d really give it 4.5 stars—12 star off as the drawer glides for the little drawers are not of the same caliber as the lateral drawers. They’re not bad but they’re not as robust (I acknowledge a large heavy drawer needs heavier glides but the type of glide used on the little guys is lower-grade).