Ralph and Maria's apartment is very nice and comfortable. It's newly refurbished and has everything you should need. Is in an area full of restaurants and bars, very close to metro.Maria was there when we arrived and she gave us all the information. It was a bit noisy at night because of the people in the street, but it was very hot and we have to sleep with open windows, and that I don't thing happens very often in Berlin :-). We found it lovely and we absolutely recommend it.