We didn't meet Luke or Juliane, but they have been responding very fast, were very helpful and gave us very nice and detailed instructions. The location is perfect! Nice park, Potsdamer Platz in 10 mins walk, the whole neighborhood is very modern and good-looking. Nice neighbors.) The apartment is spacious, clean and tidy, with all we could need during our stay. Parking garage is also a good advantage. We enjoyed our stay very much! Just the best place we had in Berlin.) Thank you, Luke and Juliane.