Sven's appartement is a great choice! I highly recommend it! It is located in a very nice and central, it's very close to the S-Bahn from where you can go quickly anywhere in Berlin. The appartement is well-equiped, cozy and clean. It has everything that you need and it even looks better than on the fotos. We felt very much at home and enjoyed our time in Berlin. Sven with his coworker is a great host! They were always available, very friendly and offered their help. Always again!