While the staff, cleanliness, and location were excellent, the rest of the hostel is okay. Easy walk to metro, cafes, shops, sights, etc. We stayed in a private double--bunk beds--and a shared bathroom. Coming from another well-situated hostel and a private room/bath there for the same cost, we were slightly disappointed. The room and bathroom is clean, and the breakfast is typical and filling (hard-boiled eggs, bread, jam/butter/nutella, tea, coffee, pastry).
The hostel might be slightly challenging to find, and on a Friday/Saturday night the location has quite a bit of street noise.
There wasn't anything that truly stood out except the staff, particularly Hannes, as he was efficient in communication and wonderful in person.