My only problem with these boxes is the fact that the lids are attached to the boxes. They don't tear off easily I've had to use a utility knife and even with that sometimes it tears unevenly. I liked the old style with the lids separate - worked better. Other than that these are the best storage boxes around for the price.
Having to pack up an entire classroom is not an easy task. The ease of assembly and the sturdy construction allowed for a variety of items to be stored with no problem.
I have used these for personal storage and as packing boxes in two moves. I like the removable lid hand spaces in the sides to carry and easy assembly. However the best part is they require NO tape!