I couldn't ask for a smoother check in and check out process. The place was clean, the pictures accurate and it provided a wonderful base for us to explore Berlin.
We traveled with two kids - 6 and 3 - and the back yard patio with play area was a perfect addition after long days in the city.
The neighborhood is ... quirky. Expect some great restaurants, but also some gritty areas - although safety was never a concern. We rented bikes as it was a bit of a ride toward the center of Berlin.
I did inform that the Wi-Fi would drop signal often, but I'm certain they worked to fix the problem because they were attentive to our needs. Our flight wasn't until the afternoon so they were flexible on the check out time, which was MUCH appreciated.