Jannis and his family are incredibly hospitable. They communicated quickly and clearly when it came to organizing check-in and were full of helpful tips and suggestions for our time there. What really touched us the most was their thoughtfulness. When I arrived, they shared their dinner with me and were incredibly warm and welcoming. The next morning they also shared their delicious and healthy breakfast with us. They were interested in getting to know us personally and were open themselves. Their little girl is a sweet pea and did not disturb us in the night at all. In general, I would say the apartment has great insulation and sounds of movement or other people were not an issue. The street is popular because this area of the city quite happening, especially at night, so do expect noise into the early morning. With windows closed, it is more like a white noise, but the window open helps cool the room in the summer. For us, the noise was no problem, but maybe for more sensitive sleepers, bring ear plugs. As mentioned, the area has become a very popular part of the city, so leave some time to just explore Friedrichshain. There are markets, boutiques and way too many great restaurants.
All in all, we loved staying here and would love to go back or keep in touch.