I stayed at Alessandras apartment for a longer period of time. If you are looking for a quiet location, but want to be in the city center very quickly, this is your place to stay! U- and S-Bahn, as well as the bus to Tegel Airport are within 5 minutes walking distance. Also there is a huge supermarket (EDEKA) nearby. Unfortunately the appartment is very badly soundproofed and not perfectly insulated. I had some problems with the WIFI and the heating which couldn’t be fixed quickly. I would recommend the appartment for a short-time stay.