The apartment was really excellent for a family of 5 to live quite comfortably for a week without any problems.
We cooked numerous times easily and only wished for an egg flipper!!
The apartment was very clean, had 3 towels per person and really could not fault it.
There is a very good dishwasher but no washing machine but just walk up to the S-bahn station past the Anne Frank museum (Weinmeister Strasse) and go one station outbound (Rosenthaler Platz) and just across the street is a good laundromat ("waschsalon" if googling - that is how we found it) and has a coffee shop inside also.
Hackeschermarky station is 2 minutes away and you can see it from the bedrooms and will be your access to EVERYTHING.
In walking distance are numerous cafes and restaurants and DDR / GDR museum which is a do-not-miss and the Berlin Cathedral.
Heaps of shopping to be had at Alexander Platz and Friedrichstrasse which are 1 station away in either direction.
The Original Berlin Walking Tours also start at your station (Hackeschermarkt) and just opposit Anne Frank Museum is Edeka which is a great supermarket and bakery + kebab shop.
Have fun, we will definitely be back to this apartment.
John