This hostel is excellent for sleeping. The pods feel super private and cozy. Also, the bathroom facilities are great. It's really good if you're traveling from outside of Europe and you need to recover from the jetlag. Of course, it is more expensive than some of the other hostels in Amsterdam, but you pay more for the comfort. In addition, it's really easy to get to the city center from the hostel by either the free ferry which is a ten-minute walk away, or the metro.
The only downside of the bunk is that it's a lot harder to meet new people. Unlike other hostels I've stayed in where there are only four bunk beds in a room, you're sharing a room with like fifty other people and you have to be quiet while in the room since it's always set to sleep mode. So if you're a solo traveler looking to meet new people, I'd probably recommend finding somewhere else. But if you looking for a bit more comfort or privacy which is close to the city, then this place is for you.