Works great! Lid has a tight fit on both the main container and dressing container. Held up great in my daughter's lunchbox and she throws that thing around everywhere. Drops it as soon as she gets home everyday. Found one in her room after a week when she didn't empty it and put in the sink for washing, Fuzzy food still in there, I thought for sure it was ruined because of the way plastic retains odor but no, after washing it there were no stains and no odors even on the lid! Will definitely be buying more!