Spam misdetection hint: I have noticed that both gmail and yahoo users have not received my responses because it was assessed as spam.
I am a German native speaker. That might be relevant for foreigners learning German.
I have had many kinds of subtenants in the past but currently I am looking for a female one only.
Because I organise (as a hobby) an international non-commercial (educational) IT project which I would like to extend to Iran I strongly prefer a woman from there. In any case: This is a very good offer, much better than the ad data suggests (mainly because the "effective" rent is about half of the formal rent) because I am only looking for someone whom I am as interested in having as a subtenant as you are interested in renting this room.
The room is currently empty and I am not determined to when I rent it out. I am fine with leaving it empty for some time for the right subtenant so if you need a room later than the date in this ad then contact me anyway.
The room has just one window which is North thus the room is rather dark. It is also cool and quiet (next to the front door but no traffic noise).
Except for weekends I can usually not reply before evening. Those who contact me and seem interesting get a comprehensive response with information about the flat, the environment, and (later) me.