Facility was generally okay. Beds were clean and the bathroom was not bad too. Finally, the price was the cheapest among the hostels I've reserved in Spain.
BUT this hostel is located kinda deep in the mountains, so you should take a cab to go there in the evening or at night, and the cab charge shouldn't be cheap. And when I showed the address of the hostel to cab drivers, they hardly knew that address so my friend and I had so big trouble going to this hostel. If you're planning to book here, I'll just recommend you to book another hostel centrally located in Barcelona even if there's a little more expensive than here. The total expense should be same or less, though, due to the cab charge(I spent about 25€ from the center of Barcelona to Inout hostel). Again, this hostel is quite difficult (and maybe dangerous for women at night) to come, since it's located deep in the mountains. Just look for another hostel located in the centre of Barcelona city.