I use these boxes for general storage and moving. The handles make them easier to lift and the removable lid makes them reusable and the contents accessible. The size makes them perfect for papers and books but I've also used them for storing everything from clothing to dishes. Also they're easily deconstructed when not being used. Sturdy stackable and the white color makes them more attractive than regular boxes.
It's hard to screw up standard white boxes - but these really were excellent. I put a LOT of stuff into them during my move and they held up perfectly.
We used these to move the contents of my wife's office from one city to another whenshe changed jobs recently. Best for papers/files they also work well for books except that one should not pick them up by the handles when they are that heavy.