Instruct: Classify an Amazon review as either positive or negative.
Query: I love this mug!

I originally chose this sight unseen because it received a top rating from Car and Driver magazine. They highlighted the mug's water tight seal and its ability to maintain a consistent temperature. I can vouch for both and really am impressed. (The review also stated that you can buy new tops if one breaks which is a nice bonus.)I found out later that the silver version of this is dishwasher safe while the colored ones are not. I bought a red one which looks nice, but would have more strongly considered the silver one had I known.