Well made, not too difficult to build.  Only thing to be forewarned about is that when assembling, it's hard to work without standing on the base floor piece, and it can get warped/marked up under your body weight a bit, so step carefully.  Also this item includes directions for building your own supports and shelves with wood which is slightly strange, but the storage piece works fine on our deck without them.  Holds 2 bikes, 2 scooters, with plenty of room for more.