I bought the Pyrex Simply Store 18-piece set for weekly meal prep, and it covers most of my needs. The glass dishes handle fridge, freezer and microwave without any issues, and the multicolor lids make it easy to spot which size belongs to which base. Lids seal well for everyday use. One note: the lids are not completely leakproof, so I would not carry soup in a bag. Overall a solid, practical set for organizing leftovers at home.