I am glad I read the reviews. One man said he wished he had bought two of the 2-shelf storage cabinets instead of the one-piece because it was top heavy. So, we got 2 cabinets and they fit perfect on top on each other without shaking or being unbalanced. They don't connect, but they sit great with each other. I am a woman and was afraid the top one would be too high for me, but I can reach the top comfortably.
I am in my "young" seventies and put the two together myself because they just snap in place.
I am an author and speaker and keep all my material in there. My books are in the storage area down down in the community level. I even added my sewing items. It is ideal for anyone. I keep them in my 2nd bedroom that we use as a office, with a computer table and my sewing machine desk (which we bought all from Wal-Mart).
Now, I just need the futon to make the room perfect.