Overall a nice place from what I have seen in Amsterdam. Seemed pretty expensive for what you get though. Showers were not very nice and rooms were more cramped then what I have seen in several other hostels.
I arrived late at night the guy at the front desk was pretty rude. The hostel has no space in it except for the room itself. There are not common areas, and the corridors are extremely tight. It is about the same price as all the other hostels, so your not saving money by staying here. Also note that it is not in central station despite it's name. No bang for your buck, try somewhere else!
Best hostel I have ever seen! Stay here, you won't regret it. Everything is clean, nice, and cool! Price is very fair and worth it. Hostel is right in the train station and close to everything.