We (family of four stayed here after my 13 year old son chose it online). In his words:
The apartment was very nice. It had great access to the U and S bahn and buses. It was also very close to great restaurants and tourist locations. Highly recommend Robertos just down the road for tasty ice cream. The internal lift was great with 4 heavy bags. Tried the bikes but needed a smaller option for my sister to get more use out of them. In one word - excellent! Would definitely stay again.