Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good sturdy containers

As expected from Pyrex brand, the containers are good and sturdy, and of course being glass, no food stains or worries about plastic causing health issues. The 3 larger sizes of the 5 are great for leftovers, though the two smaller pieces are limiting in storage. They're great for sauces or just a cup or two of leftover rice.I did find that the circular lids had more trouble fitting over the container, but once you get them on (and stretched out a bit) it goes on a bit easier. And of course the tight fit is great to ensure there won't be any spilling.