This is just a perfect location and apartment.
We traveled with our 3 young kids for 8 days: it's perfect to visit Berlin because you have that typical "local neighborhood" experience in Berlin but you're 15 mins away from the Mitte via U-Bahn, taxi, etc.
We would take the kids early morning to the local playground (just great) and local coffee shops before doing the "1 a day" site-seeing, it's just great to take advantage of the relaxed location, try out the various supermarket, the local Vietnamese or the Turkish restaurants with a cool esplanade.
The spacious apartment made it at times tempting to stay at home - in particular for the kids - the apartment is sunny and it was a pleasure to chill out at day-end from all the wondering around the city.
It was a pleasure to stay here.