Astrid's place is an excellent location for families but also for everyone who appreciates calm surrounding. It's not in the middle of the city but you can easily get to Berlin via S-Bahn which is in 15 min walking distance. The area is quiet and very pleasant to go for a walk or something. It's a typical residential area.
The apartment itself is clean and cosy and equipped in all necessary things (including coffee, tea and some other basic kitchen spices and additions). Wi-fi signal gets lost sometimes, but we've talked to Astrid about it and she assured that they will try to work on that so potentially in the future it will get better.
In general, we would recommend this place for everyone who wants to rest in a quiet, comfortable and homy space after a long day sightseeing Berlin or some other nearby attractions (Potsdam is 1,5h by public transport).