I have seen these out for a while and decided to finally try a couple of them. The design is brilliant, with a great seal and easy breakdown for top of dishwasher cleaning. I'm particularly impressed with the way OXO designed it to pull apart for washing...no funky gaskets! But, the best part...the square shape and stackable qualities. Total organization! After trying this (and a slightly larger one) I bough a set of 12!