I have a couple local restaurant supply stores near me, all have cambro containers for sale. For the last couple years, whenever I drive by, I always pick up a few. Many uses, including brining chicken, storing stinky soups, rising dough, sous vide prep, etc. They are fantastic. The square/rectangular ones are perfect for storing (dry) goods, and the rounded ones are great for mixing doughs or whatever. They clean easily in my weak dishwasher.
Note, there are two kinds of lids: the mostly-see-through ones, and then some colored ones. The colored ones are not airtight. The mostly-see-through clear ones seem to be airtight, but I haven't tested them.
The biggest beef I have with them: the local rs stores put these price stickers which are nearly impossible to get off cleanly, without scratching up the container. Even with goo gone, mineral spirits, etc. Irritating.