Sylvia is a lovely host and her place is just perfect! It's clean and literally in the middle of a park/forest, quiet and surrounded by greenery. It is a short walking distance to Olympiastadion and S-Bahn, so you can easily reach everything in Berlin. We also had a private bathroom, which was very nice considering our late arrival. Communication with Sylvia was easy and if you have any question, she is always willing to help. Highly recommended place to enjoy Berlin!