Sonja's apartment is beautiful, large and airy. The room was large and the bed was very comfortable. We enjoyed being able to use the kitchen and espresso machine and sitting on the balcony. It was the perfect place to base ourselves for 4 days in Berlin. The neighborhood is great, with many delicious restaurants within a block or two. Public transit is also only a couple blocks away, as is the park. Sonja is a wonderful host, very friendly and welcoming. We immediately felt right at home and enjoyed getting to know her and learning about her experiences in Berlin. We highly recommend staying with her!