All these problems have now been solved EMSA FUN: It is completely dishwasher safe. The lid can be pressed down with closure in the dishwasher and so are the "corners" clean.
A big advantage is that you go just depresses the button in the lid and can ansetzten to drink where you want. So you can during the ferry drink coffee without having to take a look at the cup.
Well I like also that the cup is slender and I can keep him well with rather small hands.
The lid is easy to fix by turning. Moreover, it is waterproof to 100%. Whether you shake it or tilts, it runs not out. Very nice!
So that the coffee stays hot long time, it is helpful to rinse it with hot water before filling.
The fuller the cup is, the longer the coffee stays hot. After 1 hour, it was not quite as hot as during the filling, but still pleasantly hot.
Those who prefer to use for cold drinks it, can add ice cubes or the cup before filling for about 30 minutes in the refrigerator.
MY CONCLUSION:
Chic, slimmer cups - easy to clean - good for car trips. Recommended!