I've used this brand for years and assembled everything myself, including 72" ones and I still have 2 of these that I took with me in my 3 moves  - they are in perfect condition. However, the quality of my new cabinets is not what it used to be. The 80" is a good size but the side panels on both units, the key to the entire assebly, were apparently warped, causing 2 shelves to collapse, one crashing into a sturdy box containing a collectible, shattering the contents. Customer service offered to send new panels but I had aready paid someone to put them together the first time around due to the large size, so I'd have to pay again to have units disassembled and then reassembled. It was cheaper and safer to pay somoene to glue the shelves in place with a commercial product, which I would recommend when you assemble. The shelves are not adjustable, which I also view as a negative.