I had a private room for two nights, which was small but you got everything you need plus a very very comfortable bed The ladies and gentleman working there were always nice and there was always time for a smile and a "hello".
The location of the place is amazing, especially after you tired of the hectic and the noises of a day in the city centre. I recommend everyone to grab the ferry and explore the north of Amsterdam. And the BUNK is the perfect place to stay while doing this.