We bought the storage boxes for our child so that Lego is sorted nicely (by topic). The boxes are really very stable and have a sufficient size. You do not stink and have no sharp edges or corners. The only thing I bemängle are the 3 circular holes in the ground - there then remain your little parts in it stuck. Here the best holes with transparent TESA seal clean and you've got no more problems. The boxes are stackable and can be "build" as large LEGO brick to use. The design of the stones, you can also very nice stand alone in the room without it looks ugly - it was also very important to us that it is an eye-catcher. I can only recommend storage boxes even if they are expensive to conventional boxes, they are worth their money anyway. Despite the small drawbacks I give full 5 stars !!!