Arzu & Tom's place is amazing. We came to Berlin by train and there is a bus directly from Hauptbahnhof to about a half a block from the apartment. The apartment is up about 3 flights of stairs with no elevator, so do keep that in mind. We traveled with our 3 year old daughter, and Tom was great at suggesting a few family friendly places we could visit while there. As well, the apartment is located in a great neighborhood, with restaurants, grocery stories, and an Apotheke (pharmacy) all within a few blocks. We would love to stay here again if and when we're back in Berlin!