Since offering a cup of coffee or tea lovers especially for, here are some comments to cup per se: the walls are quite thin, so you quickly burn your fingers on the cup wall and the hot drink -in comparison to my other cups quickly cools. But the handle is very generous. With my hands I'm rather narrow centimeter from the hot outer wall away. The resulting leverage at full cup makes correspondingly unpleasantly noticeable. If you drink your coffee or tea with sugar, so falls on the stir with metal spoon the loud and unpleasant sound, reminiscent of a cheap canteen utensils.
Conclusion: great idea, looks good, in practice test but failed
