I've been using this Ecozoi 3-piece set for weekly meal prep and it covers everything. The sizes (2200ml, 1200ml, 600ml) handle big batches down to small snacks, and the glass lids with silicone seals really don't leak when I carry them to work. I like the removable dividers and the mini sauce container for dressings. They stack neatly in the fridge and go in the dishwasher without fuss. Stainless steel feels sturdy and hasn't rusted. Good, practical set for portion control.