Mathias was incredibly helpful in making the most of our time in Germany. Any questions we had were answered immediately. If we needed help with navigating, Mathias would screenshot maps and give us tips on transportation to make sure we got to where we needed to be with or without Wi-Fi. He also had great recommendations for local attractions and places to eat with locals. His place was tidy and was close to public transportation. I would absolutely recommend Mathias for other travelers.