Martin was a great host! And his apartment was fantastic. Even though there were only two of us, there were 4 beds and two separate rooms so we could escape each other if we needed :) plus he had everything we could need, maps, brochures, full kitchen including dishes and he even left us tea bags, coffee, milk and water! It was fantastic. He also recommended some great restaurants and things to do. Easy to contact and the location was close to a train line and a beautiful park right outside the door. Only issue was we did not realize how loud Berlin was! Absolutely nothing to do with his place. Berlin at night was noisy everywhere. He is actually on a pretty quiet street compared to the places we were walking at night. Definitely recommend ear plugs to travelers staying anywhere in Berlin.