Very good hostel: perfect location to go out (12min to the Boxhagener Platz ; 6min to the metro), design room (we had the 4-bedroom with private bathroom and toilets), cool bar with a lot of choices (opens until 4AM), the breakfast is a great value! (5€ for a buffet). Although the ambiance is ideal for party, the room and the hostel were very calm, you will sleep well!
We had a lovely stay and we will come back soon (in the summer maybe =))