We had a lovely, short stay in Carolin's flat. The apartment is modern and extremely comfortable with great beds, and beautiful linen. Carolin was very welcoming and responsive and quickly made sure we had everything we needed. The neighborhood is great - easy access to restaurants, bars and clubs and just north of all the main Berlin sites. Despite being in the middle of everything, the street is quiet and we heard no street noise at night. We had a fabulous time - very highly recommended.