Klaus was a very helpful host and both my boyfriend and I felt very comfortable in his home. We can't fault it! Klaus gave us lots of tips for where to visit and provided is with a map. The extra touches like the chocolate on the pillow were great! Klaus even came on a run with us and became our running guide! We would definitely visit again and use Klaus. It's not far from Alexanderplatz and you can get to all the main attractions in no time. Thank you Klaus!