We were a family of five with 3 teenagers and we visited in July 2019. It was perfectly suited as it was close to the U8 and U2. The supermarket was very handy with a 5 minute walk but closed on Sundays. The beds were very comfortable and the apartment was spotless and very well equipped. It was great to have dual aspects and this allowed a good breeze on hot summer days. It was noisy at times with ambulances but this wasn't a problem. Would highly recommend this property. It is a little dear but the convenience of travels to the city sights and the restaurants and supermarket nearby made it work really well.
We had a fantastic time in Berlin and the apartment made a wonderful place to spend 7 nights.