Due to a cancelled flight myself and my family were not able to stay here, but my sister, her family and our parents were able to come.
They write: The apartment is centrally located in located in Berlin. It was clean and cosy, and well equipped. A cot was provided for the one year old. The layout worked well, being two apartments in one, and could have housed all six adults and three children (pluss two one year olds) for whom it was booked with no problem, and was spacious for the four adults and two kids who actually were able to go.
The closest subway station did not have an elevator for the strollers but we always got help from friendly strangers, and there were other subway stations close by. A few hundred metres down the road there is a big park with playgrounds that the four year old loved.
Berlin has an annoying tourist tax of 5% that gets added on top of the price for all accomodation, also at hotels. It would have been less annoying if it was included in the total amount we had to pay rather than added on top afterwards.
We were pleased with the apartment and would definatelly recommend it to other larger groups in need of a livingroom after kids are sleeping.