Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Much better than Plastic

This set of pyrex glass containers with covers is great. The variety in sizes is just what I needed. You can use these for everything. Food stays fresh and you can bake, reheat, store and freeze in them. They are durable. I haven't broke one yet. Food stays fresh and dosen't stain the containers. I love them. I may never use plastic again.