We had an awesome month at Anais's apartment in Neukölln. It's super close to the S-bahn station of Boddinstraße and right next to Tempelhof park. So it's very easy to get to anything in Berlin, or you can hang out in the neighborhood. Anais was super responsive to any concern we had and was able to help out whenever we asked. I'd easily stay there again if I needed a place to stay in Berlin.