I've been using this MEAL PREP BOWL SET X2 daily for a few weeks and I'm impressed. The 22oz and 32oz bowls cover breakfast and lunch easily, and the airtight lid lock really is leak proof—I've carried soup without a single spill. The vent lets me microwave with the lid on, which cuts down heating time and stops splattering. They stack neatly, the seals pop out for cleaning, and everything is dishwasher safe. Not suitable for combi-ovens, so check that first. Solid, lightweight steel and no plastic aftertaste.