I have a very pleasant stay in this place. It is about few minutes from Central Station by tram, in a calm but safe area. The tram station just across the street. I stayed in a mixed bedroom for 4 (with 2 bunk bed). Bedroom is spacious enough for a hostel (about 15m2, incl the bathroom). The shower works absolutely fine. It's very clean, both bedroom, bathroom, and also the living room, including the garden.
They also have large living room + pantry + dining room. In here you can just chill out meet other backpacker, or just read the travel books. You can use the kitchen and cook your own pasta, they already provide the ingredient. They have refrigerator as well, where you can keep your drinks (don't forget to label them) or you can just buy something from the convenient store and cook it in the hostel.
Lovely staffs, they know a lot about the area ( it seems they also travel a lot), also trustworthy. Wifi here is fast. They also have a couple of computers near the living room you can use.
Overall, I have nothing to complain about!