We had a lovely stay at Ingo's place - the apartment is beautiful, has all the amenities you'd need, and is on a beautiful street. The metro station is very close, and there are many beautiful parks at a walking distance. The area felt safe and peaceful enough for a family with a first-grader, but is still centrally located. Communication with the owners was easy and small issues were resolved easily. We couldn't have wished for a better stay in Berlin!