Update 23:08:14
Unfortunately, I have to correct my so euphorically written 8 months ago review and revise the assessment drastically down. In July the screw is suddenly demolished in the portafilter holder. An attempt to get stuck in the device stub out failed miserably because the machine would have to be completely dismantled for this purpose. What remains is crap, because you can operate the unit so no longer. Needless to say that the warranty has expired a few weeks ago.
Said screw was exposed to any particular stress. It serves as a mounting for a Blechsieb, which in turn served as the cover of the coffee against the pressure outlet. Why do they still breaks and so inferior screws are used here, is beyond me.