Someone kindly made me some exotic dinner which they wanted me to try and the dinner came over in a Rubbermaid Premier Storage Container. The dinner was exquisite but I was equally fascinated by the container it came in, so much so that I went out and purchased a set of my own! They seem so much more durable and hard wearing than the other containers out there these days. The lids close onto the container with such perfection and "suction" that it took me longer to remove the lid than on other brands. They don't crack or bend as easily as some other brands which I think makes them longer lasting. What they are so well known for is that they're second to none at stacking, whether that's filled in the freezer or empty in the cabinets where you neatly stack them one inside the other. I have frozen them, microwaved them, served dinner in them and cleaned them in the dishwasher. I would indeed pay more for this brand.