I have been using these containers for a few years now. They provide a great seal and make storing leftovers a breeze. Come over very clean in the dishwasher (top-shelf) and do not easily stain from spaghetti sauce. I have a variety of sizes and they always arrive well packaged. They do eventually crack (took 5yrs for my first one to crack) due to the vast temperature changes they go through. It works great in the microwave and the lids have vents so you don't have to worry about them blowing off. Their seal prevents liquids from coming out once the lid is on and clicked into place.

The Rubbermaid brilliance food storage containers are some of the worst I’ve ever purchased. They look pretty, and they seem nice at first. Out of the box they seem high-quality, but they are not, just expensive. They are very difficult to open. Of course they can be utilized to store any type of food, so they are versatile in that way but, they do not last long. They scratch really easily, even though they are dishwasher safe they quickly will crack. Within the first couple of months of usage, I had to reach out to the manufacture to replace several of them due to cracking and leaking. My set is almost gone as I’ve had to throw most of them away because they all end up cracking. I will not purchase this again. I have the pantry set as well and that seems to hold up a lot better. I suppose since it’s never exposed to any heat by microwave, or dishwasher, but again, it is not a product I would buy in the future and for that reason I do not recommend it. They are expensive pieces of junk.