We really enjoyed our stay in BerlinSurfHostel. The accommodation was easy to get close to by metro (thanks to Volker's explanation) and in short walking distance from the station. Located in the "hip" area of Neukölln we also had a huge selection variety of delicious cafés for breakfast and pubs/ bars in the evening.
The appartment was spacious, clean and cosy. Especially the beds were extremely comfortable :) It was nice to be given bottles of water and small chocoalte treats on our arrival. We definitely recommend this place for a stay in Berlin. Thanks a lot again!