Franziska is a very nice person with a spontaneous curiosity without being too much intrusive. She gave us a lot of freedom and we really had a good feeling in her apartment: a beautiful flat, with nice designed furnitures and comfortable bath/bed rooms. It is very well situated (close to Alexander Platz), easily accessible by public transports and surrounded by many good restaurants. It's just the perfect place for a short (maybe longer) stay in the 'Underground City'. I hope we'll be back soon....