It was ok, not much of an atmosphere, and not very many facilities. Beds are very small, and shakey. I avoided the showers all together.
The hostel was good if you are not looking to go into Amsterdam very much, I did day trips to Rotterdam and Utrecht from here but transport is expensive. It is not close to Amsterdam, don't be fooled! If you are not a smoker, do not stay here! People only hung out in the smoking room, and there was zero atmosphere. The staff did the bare minimum. It was clean, and the rooms were very large. But you will hear the music from downstairs through the night and loud traffic in the morning.
The hostels location cannot be beat, it is literally two minustes from Dam Square. The road it's on is lined with bars resturants, and coffeeshops. If you are going there with friends it is perfect, especially with the bar downstairs (good drink deals.) But if you are there alone, like I was, there aren't any common areas to meet people. The bar is mostly the public. I was lucky enough to meet some good people in my room though. Breakfast was excellent! Bathrooms in room very good size!