Staying at Carol’s apartment a was the best experience I could have asked for. The place was incredibly clean, the location is really right in the middle of a great area (lots of shopping and tourist options around but also small cafes and lesser-known cute stores that give character to the city), and both carol and her daughter were great hosts. They have lived there for a while and know a lot about Berlin so they can definitely give solid recommendations on what to do. They are also very kind, warm people, and I felt very welcome staying in their home. Next time I am in Berlin i will definitely stay here again!