The stay was nice, the personnel was polite and friendly; the place was small and cozy, especially the common area, and to be a hostel that close to Stockholm's city center it is worth the price. The only thing that I found inconvenient was how small were the bathrooms but they were overall fairly clean and cleaning products were always available; also, I have to say that the room was a little bit too cold for me.
If you're looking for a cheap place to stay near the city center and don't set your expectations too high it's the a good place to spend the night, very recommended.
If I ever visit Stockholm again with a low budget I'd totally go there again.