We stayed as a couple for 3 days at Sörens place. The apartment is super clean and has a lot of light. The bed is quite comfortable too and the kitchen is well equipped. Communicating with Sören was no problem and the Self-Check-In went very well. The best thing about the apartment is its location though. With the vibrant streets of the Prenzlauer Berg just a couple of minutes away by foot, the apartment is perfect if you want to enjoy the Berlin vibe while still being able to sleep in a quiet place. A Tram stop is super close with a direct connection (~10 minutes) to the Berlin Central Station, the U-Bahn station is also nearby. I am sure you will enjoy your stay at Sörens place and I would definitely recommend going there.