I loved the way these shelves looked, and that they had storage space, so I bought them. They come assembled, which is nice, and are very pretty, but WHAT A NIGHTMARE TO HANG. It took my dad, a very experienced builder/knower of all things home improvement-related, and I literally hours to get them up. If you live in any kind of older building (I live in a pre-war), your walls may not be perfectly flat, but slightly concave/convex. Well if they are, and I'd be willing to bet possibly even if they aren't, you will have a heck of a time hanging these. You mount the bar to the wall but if the wall curves, the bar curves and the shelf will not catch on the button that holds it up. Special thanks to reviewer sgordon1125! When I went back to read reviews looking for inspiration on what we could do, and saw that her husband had put a shim behind the bar, my dad realized that was the only way this was going to work, and did the same. Sure enough, it worked! Now my shelves have been hanging and NOT falling, even under the weight of all my books and dvds, and they look great.