This shelving unit has a very unusual way of going together -- quick and easy, but unusual -- and at first I wasn't sure how sturdy it would be or how it would hold up. It is great! I love how the shelves are held firmly in place but I could easily move them without having to take the whole unit apart. Very versatile. I use it in a frequently-accessed wide hall closet to hold bins where my kids keep all their joysticks, games, DJ gear, controllers, headphones, wires galore, etc. I also keep some of my hobby supplies on it. It holds up to daily rough usage by teens! The things we store aren't very heavy, but I can tell this unit would hold a great deal more weight quite easily. It holds 3 average sized bins per shelf. You can easily space the shelves so that more bins can fit under the bottom shelf, for even more storage, if you wish. I am very happy with this purchase.