I finally upgraded my mismatched plastic storageware to this set of Snapware glass containers. And I love them! I've been using them for at least a year now. They are tempered glass, so they don't break easily, and the lids fit so tightly I wouldn't hesitate to stick a covered bowl of soup in my handbag. The first few times you use them, the lids are actually quite difficult to snap on. But break them in just a little and they're perfect.