I can't explain why, but I have never really gotten along with Thermos mugs. There's just something... off about the taste, or the way the mug feels on my lips, or something, I'm not sure exactly what.

The Ember is ceramic, and apart from being a bit heavier, feels exactly like a normal mug.

Absolutely agree when I first got it as a gift it seemed like a solution looking for a problem, but actually using it has completely changed my perception of it.