Roman's flat is fantastic if you are spending a few days in Berlin. Kreuzberg is an amazing area with so much to offer from quirky restaurants to brilliant open air swimming pools. The flat itself is a good size for a couple (or a single person). It was clean, tidy and everything we needed was provided. I didn't meet Roman, but he was very proactive, always keen to answer our questions and made sure we had all we needed. I will certainly use it again when I come back to Berlin.