These containers are high-quality, durable, and dishwashable, but what really makes them so smart is their size and shape. Besides being stackable, they're just the right depth for a pantry shelf, so everything is visible at once. Nothing gets lost in the back, and you can easily tell what you're running low on - they even have unobtrusive graduation marks on the ends, so you can see how much you have. Plus, they're wide enough for a measuring cup.
These containers are only very slightly tapered, which maximizes storage volume, but also means they don't really nest when empty. Since they're made for long-term storage, this makes sense. They aren't meant to sit around empty.
I'm using the largest containers for my bulk pasta, and the smallest ones are great for a bag or two of dry beans. The set of four is a great start, after which I decided to buy some more individually based on what I still needed to store. I think I'll be using these for a long time. I love them!