The container is huge and stores a lot of cereal. It's great for family-sized cereals. The seal appears airtight and is quite secured. It should keep prying little hands from trying to lift the lid fiap up. My issue is with the placement of the flip top on the lid. There's too much of a gap around the flip top that would require me to wipe around that gap each time after I pour my cereal. Otherwise, I'll be sure to have an army of ants and other bugs showing up. At its current selling price, this is a great value.