We didn't had the change to meet Carolina in person, but she was always sending messages making sure everything was alright, asking if we need anything and promptly returning to our questions. We stayed with our 2,5 yo son and the apartment had everything we need for a short stay in Berlin, is cosy and spacious. Two tram lines (M2 and M10) passes in a station nearby, so is very easy to get to the city major points using tram. Lots of restaurants in Prenzlauer Berg area. Really recommended!