Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great!

I bought this as a gift for my dad when he went back to work after a procedure had him on leave. There are two things my father does well, drink coffee and not pay attention. I have bought scores of mugs for myself but he eventually takes them and ruins them. From breaking them, putting them in the dishwasher, leaving them in his car for months so a new civilization can form in them, it runs the gamut. This mug has done really well, as it has not yet leaked which is a sign that he has broken it. It also keeps his coffee warm well into lunch time.I would recommend this, if it was around ten or fifteen dollars it would be perfect!