Holger's "Ferienwohnung" is an ideal base for 2-3 people during a visit to Berlin. I would happily live there permanently - the place felt like a stand alone house! As it is located in the inner courtyard of an apartment building, the apartment is pin-drop quiet at night. There is even a well-set up kitchen and a washing machine that Bettina was happy to show me how to use. I highly recommend staying in this apartment.