Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great heat retention, comfy drinking lip

This bottle seems to hold the heat for hours, in fact I burnt my tongue when I had preheated it and drank hot coffee within an hour or so. Now I don't preheat if I will be adding creamer and drinking soon. I'm not sorry I didn't buy the handled version because of the extra price, and it would be handy.