This was the extreme!
Really bad, dirty, not good attention, nobody to help you. Please don't try it.
You will not sleep and will be thinking about your stuff while you try to enjoy the city.

Very small and dirty hostel. Very noisy, no lockers in room.

We had a 4 beds rooms, with private bathroom, a wonderful view to the main street. They do not have a heating system and we were really cold during the night.
Located close to the center and to a metro station.
Simple, but ok breakfast. Clean hostel.
The receptionist was a bit grumpy because we wake him up at 4 in the morning, but he helped us and gave us a room to sleep until morning when we were suppose to check in.

Ok look, it's true, this hostel is kind of 'crappy'. But this is exactly how hostels are supposed to be. Too many people book themselves into hostels expecting 'hotel quality accomodation'. I really don't care about certain things that others seem to get hung up on, because every day I was out all day (there's too much to do in this city) and would get back after dark. There was a clean bed and hot water there, so that's really all I care about.

This location is PERFECT, it's on the main street of Barcelona, yet about a 7 or 8 minute walk from the city centre square, so it's far enough from the hustle and bustle. If location and price are your two most important factors, stay here.

I will stay here next time I'm in town.