Claudius and Barbara were great hosts. They helped us with an early check in and they were always available trough the app. The apartment is in the best neighborhood of Berlin if you are looking for a real experience and not a touristy one. Very well connected with U and S bahns. Lost of bars, restaurantes, bookstores... If you are going for a few days to Berlin and need a place to rest and shower to go out again, this place is perfect, and the price is very good. We specially loved that the flat is on top of the Marxist Leninist Party. Totally recommend it!