Sebastian is a very friendly host. We were able to make an early check-in and late check-out. Apartment has four big and bright rooms. Unfortunately there is only one bathroom and It was a little bit difficult for our group of six person. Julius Leber Brücke station is really close and S Bahn connection was appropiate to reach to Berlinale (Potsdamer Platz) We would definately come back to stay at Sebastian's apartment.