Just got this today and have already put it up...I have a space on the wall of my kitchen that needed a shelf that was more square like this is for there isn't enough width there to put in anything long..I have one of those kitchens that no space can go to waste, and this fit the bill as best I could find...I was actually looking for something like this that was bigger, maybe this width but 30" long or so with more shelves but I couldn't find anything like that on Amazon that didn't turn into a floor unit at that length or greater..(Amazes me the things you just can't get at times). Anyway, as far as this shelf is concerned it is well solid enough...It won't bend or break unless you seriously overload it...And even then it will probably hold it if you secure it to the wall well enough. It was easy to put together and came with instructions, but even without them you can pretty easily just stick it together...It came with all the screws and hardware you need, (hex head screws, and a hex wrench is included). Butterfly hangers come with it for seriously hollow walls, and wall anchors for good but less holding power which is what I used...The only used them on the top two holes and bare screws at the bottom which well held it to the wall for what I have in mind for it...The only defect in this I found was one of the drilled holes in the unit wouldn't accept a screw no matter how hard I tried...Fortunately it was where the crown on top holds the to side units so I got by on just one there. But be aware that there can be some problems with quality control...A couple of other observations...Although its hard to see, the small wall shelf unit that I have has screen style shelves on them, they are not solid. Not a problem with me for I like them but they don't show well in the picture...Also, when putting this together make sure you leave everything loose a little. If you really tighten the two side units the shelves squeeze in very tightly and you will just have to loosen them again anyway. Once I loosened it all the shelves slipped in and it as a complete deal..All in all I really like this shelf...I could have used it a little bigger than this as stated before, but it will do...Its solid, attractive, and comes at a very fair price...Recommended..