This unit was so easy to put together, I did it myself while my hubby was at work. Took me 40 mins all together , would have been quicker but after the first 4 shelves were in I had to climb up and down on a chair several times to finish the top because I'm 4'11 . The unit is taller than me lol, but for others it would be a quicker project. The instructions are clearly written and the illustration in the book are precise. I loved that no tools are needed, everything just hooks and snaps into place. The shelves are very spacious, I'm storing items in 66QT plastic totes and 3 of those fit perfectly on each shelf. The unit is sturdy and looks strong . [This review was collected as part of a promotion.]