We stayed 5 days in Carmen's place with our 2 children (8 years old et 1 year old). Only one bedroom but very big so we can sleep all together in the room easily. The place is great with a little garden. Very clean. 5 minutes walk to go to the subway station (Frankfurter Allee, U5), through a very pleasant footpath.
Closed to a very lively area (shops, restaurants).
I recommand the place.