I stayed for two nights. I visited a lot of hostels during the last years but the NSBH is the best that I ever been. The hostel is in the city centre, 5 mionutes walking from bus station. Staff was really nice. I was travelling by myself but during my staying i met a lot of people in the common room and we merge in a big groups going out togheter with some members of the staff. Room was clean and so the bathroom and showers.
Nice Hostel with a lot of international people. The Position is really close to Hyde Park and the Underground. Breakfast is free but could be better ( maybe croissant or coockies). Generally, I spend a nice days in this Hostel.