For anyone on a budget who just requires a bed, shower, toilet etc, can't recommend this hostel highly enough!

http://www.haus-international.de/de/

My room was very basic with a bed, table, chair, wardrobe (with safe, no charge) and tv (€10 deposit for remote control). Private bathroom with shower, basin and toilet. Very clean, lovely and warm despite the chilly, damp November weather. Free wifi (password given at check-in). Very friendly staff. Bright, clean dining room.

Well positioned for gigs/events at the Olympiahalle/Olympic Park, approximately half an hours walk away through the park itself. Regular tram and bus service right outside the hostel (maps/timetables for the trams, underground, buses and trains are SO EASY to understand!).