Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not bad

I bought this for my boyfriend to take on fishing trips with him, because we don't live near the water he is gone all night and all day because he has to drive, I like the size of it since it holds a lot of tea. And if you put hot water in it before storing a hot beverage it will normally last a good 24 hours before it starts to get lukewarm/cool. I have not tried it with cold beverages since I mostly bought it to keep things hot, but maybe in the summer I will try that. The only thing I wish it featured was an option to keep it hot/cold with a plug.