The Clatronic is very well suited, perhaps also because the coffee is not so thick as a protein shake for this purpose.
Sure, the mixer is processed quite cheap and the engine I would not even allow long run, but for the purpose it is acquired prima suitable. Also, I find it very successful design. The measuring cup is very stable, high-quality and large enough for my purposes.
Clean by wiping with a damp cloth is easy to clean measuring cup under running water. The blender can I get the cleanest, if I just for 2 seconds in the measuring cup filled with water take it again in operation.
But there's me 4 star and a buy recommendation.