This mug works great at keeping your drink hot for a couple of hours. It's nice that it has three heat settings so you can choose exactly how hot you want your drink to be. It's easy to use and feels comfortable to hold and drink out of. Plus it's cool to see the temperature you set it to on the cup, it flashes when it's heating and stays constant when your drink is up to temperature. The only negatives are the battery doesn't stay charged very long and the cup doesn't hold very much since it's only 12 oz. But even with those, it's still a great mug to use if you're like me and drink slowly. My coffee always gets cold which I don't care for but with this mug my coffee stays hot until I'm finished drinking it which I love.