I've used at least 100 of these "banker's boxes" over the past decade mostly for organization and storage of books in private libraries and storage of personal records. Once assembled with their tops on they are tough enough to retain their shape stacked at least four high about the limit for handling boxes filled with books. These are also the least expensive "banker's boxes" that I'm aware of. For practical use the only thing more offered by other boxes is higher prices.
These are great and have become the industry standard--you see them everywhere. I do wish they came in smaller amounts--3 or 5 packs--instead of just 10 packs. The home user doesn't always need so many or have the space to store the extras.
Like many items I first used for a home office then moved to using in our business. We store many and move papers to clients in this attractive box which incidentally has caused many clients to buy a quantity for themselves
I'm a repeat user for files in storage. I like the combination of a fair price rugged construction and the ability to stand up to being stored on top of one another without buckling.
I used the boxes to store my off-season clothes on the shelf above the closet rod. I store my sweaters in these boxes on the shelves of a bookcase I have covered the outside of the boxes with decorative paper.