I wanted something functional but out-of-the-ordinary for my midcentury inspired den and this is perfect.  Shelves fit together nicely  - trickiest part is lining up the holes for the anchor bolts on the wall; we used a piece of white chalk to mark the shelf when hanging.   It's heavier than I thought it would be too.  Claims to hold 30 lbs. so I have only small books and artwork displayed and it all looks great.  Display shows two shelves matching at top or bottom but I have them all staggered.