We, a family of three, stayed at the apartment for 5 days and loved it.
Even before getting there, Daphne was helpful and sent us recommendations for restaurants and activities for kids.
The apartment is ideally located; very close to public transport and Alexanderplatz. There is a very close supermarket and the Alexa shopping is very close as well.
The apartment was fully furnished including everything one might need in a kitchen, a fact we used to make an excellent breakfast every morning.
Daphne was very responsive and a minor issue we had with shower holder bar was fixed very quickly (within less than a day) after a single chat with her.