Nice set, good sized containers. Sturdy and reliable container set, which is super important when you have drop prone kids in the house. The locking lids are a freaking life saver, or floor saver I suppose, when they inevitably drop the container. Thick walled glass that resist breaking and keep your food safe and won't pick up the grease you get from so many plastic containers. 
Get a good bottle brush is my recommendation though because with the lids there is a bit of a lip that can be tougher to clean in, but a flexible brush solves that issue not problem.