+++Breakfast was good for a hostel, reception stuff was very friendly, location is very good (close to Potzdamer Platz), there is a big locker per person, beds are ok. I was happy to choose them in general.
---It could be a bit cleaner (it's generally clean, but the cleaning ladies do not enter the room to clean if there is somebody in), some of the cleaning ladies are impolite (but some are very friendly as well), pillows need to be renewed, they try to charge 3.5 euro extra per day because they are a member of IH (if you stay a bit long, to get the membership card for one year is more reasonable (18€)), no enough plugs in the room, you need to bring a splitter or ask one in the reception, there are lots of kids and families (they run in the corridors, it is better if you bring some earplugs).