We were looking for an inexpensive hotel for 3 nights in Barcelona, we managed to book it at otel.com for 45 EUR per night.
Hotel room and bathroom are very small but the important that they both were clean. There was a small TV on the wall which was showing local channels only.
The staff didn't speak english, but if you know few words in spanish thats enough to get your key and pay the invoice.
Subway is a 5-minute walk. You will get to city center (Passage de Gracia) in 15 minutes. Buy 10-trip subway card for only 7.85 EUR, it's also valid for busses and trams.
Minus: The hotel is located right near the highway, we couldn't open the window in the nights because of traffic noise and dust.
I would recommend this place for young people who are coming to travel Barcelona, this is definetely better place than youth hostels.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC