Dominik's place is super clean and the bed is very comfortable after a long transatlantic flight. I appreciated how close it was to two tram lines and the U-Bahn, which was both convenient when I came in from the Hauptbahnhof and for getting around the city the next day. The one difficulty is definitely getting luggage up and down three flights of stairs, but the location more than makes up for it. Dominik was also very quick to respond to any questions and check in on me throughout my stay.