I just received this shelf, and so far so good! The first unit that was shipped to me came broken (5 shelves right down the center). Customer service was super helpful, and they got a new shelf out to me within a matter of days. The description says its weight limitation is 30lbs. Since this was going above my work bench, I don't find this to be a problem. If you are looking for a shelf to put all your books, this may not be the one. The hardest part during instillation is making sure to measure very well before you drill your holes, as you have to put the whole thing up as one piece. It is not terribly heavy, but I did have my brother help me lift it onto the wall because I'm a shorty. It looks good, feels solid, and will hopefully last for a number of years! Thumbs up!