Very spacious clean apartment. Me and my 2 friends really enjoyed our stay in Berlin. Crisp white bed linen, clean white towels. Martina is easily contactable and very friendly and helpful, we had trouble with our key on the last morning and Martina arrived in minutes to resolve the problem.
U-bahn very close by providing easy access to the city.
Would recommend Fraulein Wild cafe opposite the apartment for nice breakfast. Good bar next door( even if it's a bit dark), friendly staff at both.
If visiting for Christmas markets highly recommend Roten Rathaus at Alexanderplatz and Schloss Charlottenburg