Hi,
Sorry for the late reply.
If you are still looking for a German teacher who is a real professional and a patient, friendly human being, I can recommend Fabienne Müller.
Since she has - finally - got her website up and running, I can share her details here, for the benefit of other EF members.
Fabienne helped me improve my knowledge of German from B2 to C1 level, by providing tailored lessons and keeping me interested in going further with learning.
She has just opened her office in Kilchberg, here is her website:
www.diesprachkunst.ch
Enjoy learning, it can be fun!
Ciao