When our search began, we wanted to replace a 2-shelf wider bookshelf with something narrower and taller. There are a lot to choose from, and some IMO overpriced. When I noticed this shelving unit, it looked solid, and the majority of the reviews were complimentary of the form and function. What surprised me was a well-packed, well-designed product that was remarkably easy to assemble. Everything in the box was well packed and without blemish. The shelves were made of high-density material and laminated on every face with an attractive faux wood-grain material. The metal sides were sturdy with the horizontal pieces welded. The sides arrived in two pieces for each side; an upper and a lower. For the style we had chosen, our frame was satin black and the shelves were a dark walnut tone. To strengthen the metal frames, there was a cross-brace to add to the back. The assembly instructions were remarkably concise and were printed on a material that couldn't be ripped. Finally, all the hardware was individually packed, and the packing also included a small crescent wrench and two Allen wrenches. Oh, and for each hardware item, there was an extra part. Nothing is perfect, but my only difficulty was (1) not reading the instructions and assuming I knew what to do, and (2) not having another set of hands to help with the assembly (as recommended in the instructions). Still, from opening the packaging to having a complete bookshelf in about 45 minutes. It might have happened more quickly if our 3-year-old granddaughter hadn't come in repeatedly to put the refrigerator magnets on the metal sides WHILE I was still working things out ... actually, that was the best time of the whole project. That's about it. No, I don't own the OTK company, but I am very satisfied with what they designed and sold to me.