I've had one of these for years and absolutely love it and use it every day. I recently bought a second one so that I wouldn't have to take it with me every time I visit our cottage upstate. Even if I'm there for just a long weekend, I don't want to be without it. It keeps my coffee just the right temperature. The one I've had for years has endured a lot of abuse - spilling on it, knocking it on the floor many times, etc. - and it just keeps working beautifully. Amazingly durable product. It's one of those rare little devices that solve an every-day problem in a convenient, low-cost way.