I was in Berlin with my fiancée and we stayed in Anne's apartament for about 45 days. What a lovely place, we really loved it! The apartament is really comfortable and spacious and the neighborhood is really nice. Anne's apartament is one block away from the U-Bahn and S-Bahn stations, so it is really easy to get around Berlin. When we were there Anne was away, but her friends Katharina and Raik did our check in/check out. They are really nice and friendly and they helped us with everything we needed!
I would definetely recommend Anne's apartament!