Title: It leaks
Review: I got this product in the middle of Feb 2010. Unlike the claims it doesn't leak---it does. In fact, it leaks worse than a plain starbucks metal coffee mug. Leaking also means that it doesn't hold vacuum or keep contents warm. Maybe I got a lemon, but this product is a waste of money for anyone who wants a mug that won't spill if inverted.
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