Katharina's place is a great base for exploring Berlin! The river and really nice bars like Frau Luna are just round the corner - the vibe on a sunny day is so good. Travel round the coolest neighbourhoods (Kreuzberg, Neukölln etc) is super easy from the nearest station, but as with cool neighbourhoods in any city, it can feel a little sketchy at night, especially around Kottbusser Tor station. Just something to be aware of, but totally fine! The flat itself, is super spacious, has loads of books and plants, and is decorated with a lot of pictures and models of genitalia!! Characterful for sure!! I was going with my sister, but I'm sure the setting would be great for couples! Communication was great, check-in super straightforward, the flat had a warm and welcoming vibe. Thanks very much for a great stay!