These are great shelves and extremely easy to put together. The surprise was how heavy the boxes were. The directions were clear. What I really like with these is that they come with a support piece that slides in the middle of the shelves. We have a set of older shelving units like this and they don't have that. The only piece of advice I would have is to use a heavy mallet instead of the little hammer that comes with the shelves. I destroyed two of those hammers on two shelves (with lots of pounding), but the mallet works so much better. It is a shame that the hammer that comes with the shelf is really a one-use only hammer. But that has nothing to do with the shelves. I am really happy with these.