Great bookcases. The assembly takes a little bit longer, since there are many shelves to screw into place, but the end result is worth it. Each piece is relatively light, and the final product is pretty lightweight as well, which made it easy to assemble and move solo. Pieces of the frame did not align perfectly, but the misalignment is not noticeable once assembly is done. I ended up not affixing the bookcases to the wall (I'm renting and didn't want to make unnecessary holes) and they are sturdy enough to hold my books and trinkets without them.