Title: Great Mug but Be Careful
Review: I have had this mug a few months now. It's great. It keeps the coffee quite hot, it doesn't spill or leak, and it's a nice mug ergonomically.There is a warning though: sometimes when the air pressure builds up, the coffee will spray out the back hole when you push the button (and quite a bit). I make my coffee in my mug every day, through a cup filter, and then pour it into a mug, and this spewing has only happened when I am pouring (I rarely drink directly from the mug). But if this happened when I was drinking, it would spew in my face, and given the hot temperature of the coffee, this could be dangerous. My suggestion: make it a habit to always push the button when the coffee is away from your face, and then bring it to your mouth. Better safe than sorry. But overall, a fantastic mug.
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