We were introduced to the apartment (and Berlin) by Sven. He was most helpful in answering any questions we had and even helped us with our washing. He was on-site the whole time we stayed in Berlin, so we could have asked directly for assistance at any point, which was reassuring. He also provided a cot for our baby which was greatly appreciated. All in all, a very friendly and easy-going host. The apartment itself was in a wonderful location and was clean and uncomplicated. We would definitely recommend staying there while in Berlin!