We’ve bought 3 sets of these- 2 sets the first time for the home office and a 3rd set for the kitchen.  Shelves for the office would have gotten 4 stars easily as everything was in great shape.  This last set we bought, the metal brackets all look beat up, so that dropped the average rating.  I took off 1 star bc the instructions are practically nonexistent.  We had no problem, but if you’re not familiar with locating studs vs using drywall anchors to hang shelves, you’ll have to watch some Youtube videos to figure it out.  The do offgas for a few days after opening, so heads up.