Ulrichs flat is right in the middle of Berlin. He and his partner are very nice and two mornings we had a nice chat with cup of coffee on the balcony. When I arrived in Berlin I missed our appointment by one hour but Ulrich was nice enough to wait and let me in one hour later. During a very busy week in Berlin the flat was a good place to rest, no problems at all. If you need highspeed-internet or have to down-/upload larger files the Wlan is maybe not for you.