Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I cannot find fault.

I almost didn't buy this based on reviews but considering both the low number of reviews as well as the relatively high number of low ratings across almost all thermoses I figured that it hadn't had a chance to even out yet.I have had no issues with this thermos. It keeps my coffee hot for hours in 0 F weather. I bring it with me to work, drink a cup or two before my shift and leave it in my car. When I come out 4 1/2 hours later for lunch it is still piping hot. I haven't tested it any longer than that as I drink my coffee too quick to test it.I think that given the glass insulation on many thermoses may account for defective products due to rough handling during the shipping processes. Amazon themselves packed it well.