I've had this mug for about 2 weeks now and I absolutely love it!! It's the perfect size and fits perfectly in the cup holders in my car. My coffee actually stays hot for about 2 hours or more. I've bought so many of these kind of insulated travel mugs in the past and none keep the coffee hot for long. I like this Keurig mug so much, I'm going to buy another one so I have a spare at all times. Thanks Keurig for making a true insulated mug!!