Amazing. I paid 23 euros a night and it was really worth it. Close to the center and in a park so it’s quiet, super nice view from the room with big windows, amazing equipments (private USB ports) and you can rent anything at the reception if needed. The beds are super comfortable, the only thing I would complain about would be the ladder to get to the top bunk, which is a little difficult to climb.
10/10 would book again !