Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Designed to be disposable

These take a lot of flak from people who claim they are too flimsy, etc. However, I don't think people realize that they are designed to be disposable and therefore aren't designed to be ultra durable. They are strong enough to last through one use, which is how often I use them. I can easily see them being more useful with a plastic bag inside, however for my purposes, I don't mind spending a little extra to replace them and make my life easier, which is the purpose of the box anyway.