I had an issue with my original ember travel mug, customer service was great. They replaced it with the new version. Just got it in and it works great. I like the interface better on the new version. I am hoping a new version will come out with Qi charging. I think that's all it is missing to be the perfect coffee/tea companion. Even if it is more expensive, I think it will be worth it. I am happy so far and would recommend it to anyone.