From my Liquid is not recommended, especially not in the pure state. Stales and after a few trains simply "disgusting" burned!
Update: After reading the positive reviews about the product, I have replaced the evaporator, cleaned the tank to give the Liquid a new opportunity. And no, it has not changed. It tastes like burnt coffee, my cappuccino Liquid, I have added, could not change that. It really tastes like a burnt coffee / espresso. The Liquid is really not advisable, in my view. For coffee lovers who can stand all day the coffee pot and it then again maybe warms interesting. For me ... a "no-go".
Even after I had a new Liquid filled into the tank, which has borne the evaporator of the "coffee" Liquids, were dominant taste traces of Liquids yet to taste. I had cleaned the tank first and still the aromatic bitters of "coffee" Liquids were still to taste. Only after the evaporation of the half tank of a refilled Liquids the flavoring substances were gone. The taste still haunts me and is bitter terrible.
If there would be a "zero-rating", I would have forgiven him to be happy.