I work in the steel mill industry Night turns, The thing I hate the most was not being able to take a home cooked meal with me during my "lunch" break. My Tupperware would not hold up, Lids etc. could not handle the rugged tossing without leaking Hands down this is a heaven send to me. Yes they mar easily and look rugged in time......but don't we all!!!! I have bought 2 sets and so far all I and my wife, can say isI" EXCELLENT" or shall I say BRILLIANCE. I eat a home cooked meal every night now.   AND NO I WAS NOT PAID NOR AFFILIATED WITH THIS CO. simply just love these containers