I wanted to switch from plastic storage for a number of reasons but mainly the way tomato based food stain them and this cause them to look dirty. This glass ware allows me to make one dish meals since I can go from my gas oven to the table, to the refrigerator or dish  washer.  I love this product

Pros: Light weight lids fasten securely , oven safe
Cons: I wish they all were stack able only three sizes stack this makes storage a challenge.