Instruct: Classify an Amazon review into positive or negative sentiment.
Query: could be much better

Cons:1) the lid is wide, so it's not easy to get a grip to open2) food has to be put really hot (with warmed container, probably) to stay warm for a long time. Most often, my food was practically cold already after 3-4 hours.3) the internal container is hard to take it out (it get's stuck). I'd prefer to not have the internal container, because in the end you will want to wash both the external and the internal ones anyway.