We were a family of 5 (Grandma, sister, and we with a child of 3 yrs), so the place was perfect for us. Everybody had his own room. The appartment is very well equipped. We enjoyed the breakfast and cooking to save a lot of money (sad exchange rate EUR/USD) and avoid trouble in restaurants caused by the little one. Unfortunately the weather was not as good to use the cosy court yard with table and seats.
It is a cosy place and Verena & Donald are really nice hosts. Whenever we had a question they were just a few steps away and could help.
The metro station (3) to Manhattan and other parts of NY was just 5 Min. walk. Also various supermarkets, cafes, restaurants, pubs, bakeries were very close to it.
For family:
Our son liked the trampoline in the court yeard so much. There is a nice playground just 2 blocks away and so many nice parks to run arround! Pier 6 at Brooklyn Bridge Park was our favourite! Also in Manhattan were great playgrounds. The children museum in Brooklyn is an absolutely "must" for older children up to 3/4. Also you can find all stuff for children in the supermarkets. It was such an easy holiday but you should plan enough time for playgrounds that the kids enjoy the holiday too.