We had a wonderful stay in this apartment. Check in was easy and David met us at the apartment to let us in and show us around. The apartment is much larger than expected (especially the master bedroom) and vet quiet and comfortable for sleeping.
It is in a great location that is very family friendly. We visited the park in the Humannplatz across the street almost every morning with our son.
I would definitely recommend this apartment for a family wanting to stay in a lovely area of Berlin.