We had an amazing time staying at Nikolas' place! The apartment is gorgeous, it's a wonderful mixture of history (since it belongs to the core of the Kastro, a medieval castle!) and new charme through stuff like the half-open bathroom he built there. You have a very nice view from the small deck in front and even doing the dishes can be fun, enjoying the pretty view from the kitchen. We loved it! And also we loved meeting Nikolas and his friends! They were the most welcoming, interesting and fun people to hang out with. That's what we love about airbnb! Not only discovering places in a more local way but also meeting people and making new friends. You're always welcome in Berlin! Thanks a lot! L+N+C