Don't look any further, this apartment has it all. We traveled as a family with 3 older kids and it was just perfect. Everything is there, people are very nice, it's in a quit street but right in the center of Berlin and it's true what someone wrote before : it's even better than the pictures. If you are looking for space, this is the place you need : large living area, three rooms and a study, two bathrooms and even a terrace.
I would recommend it to anyone.