I stayed in Pia's and Stefan's apartment from mid July until mid September 2016. I was in Berlin for working purposes and I was very lucky to stay in their place. I met Pia and Stefan as soon as I arrived at Neukoln and they quickly introduced me to the apartment. They are both lovely people and I had a great communication with them. They gave me a very well organized guide that they made and printed themselves, which had all the possible info I could ask. Concerning the apartment, it was newly renovated and the result is excellent. It has a nice wooden floor and a the bedroom is reached by wooden staircase, which is also a shelf. The kitchen is new and has literally everything one could need. The bathroom was new, comfortable and very clean. The apartment's location is also very interesting. Within 5-10 minutes walk one can find the Neukoln train station which has both S-bahn and metro. That is really convenient, as one can quickly reach any place of Berlin (i.e city center within 15-20 minutes). The apartment is also quick and convenient to reach from both Tegel and Schönefeld airport with public transportation.
Overall this place is an excellent choice for single people visiting Berlin either for short or long periods for leisure or work, or (especially) for a couple. It was a great pleasure to meet Pia and Stefan, as they are two aspiring and brilliant young people, and live and work for two months in their cozy apartment. Thank you guys, I will definitely visit and stay at your place when I will return to Berlin!