I've been using this MEAL PREP BOX SET X5 for a few weeks now and it's become my go-to for weekly meal prep. The stainless steel feels sturdy but light, and the leak proof lid lock really does keep everything sealed, even soup. The vent in the lid means I can microwave without splattering or cling film, which is a nice touch. All five boxes and lids stack neatly in my cupboard. Dishwasher-safe and easy to clean since the seals come out. Not suitable for combi-ovens, so keep that in mind.