This was an excellent experience in Tim's place.
A huge and very comfortable room with a private balcony and view in the garden.
In a central location very close to bus stations, tube stations, interesting parks etc.
The house is in Kreuzberg, in a very interesting area with all kinds of shops, entertainment and food that stays active till late.
Even though the area is energetic, the room is pretty quiet.
Lastly Tim is a very king guy and superb host, he helped me a lot, we had a very enjoyable chat.
I recommend Tim's place with no second thoughts and I don't think I have any reason to search for any other place when i return to Berlin.