Location is quite central. Walking distance from Alexanderplatz, and a couple of parks. It's right on top of a LIDL and a bunch of restaurants, so it's pretty convenient. Basic but good facilities. We particularly wanted a place with a washer/dryer. Baby bath and crib was supplied which is nice. High chair also.
It was clean, but the place could probably use some renovation, and install some popper ventilation. It was 27C in Berlin when we arrived and there is no aircon, so aircon would be a nice addition. Otherwise, the place was fine. Ideal for 5 - 6 people.