Booked a hotel in 2004 though Aragon. It's really near the Ramblas.
As the hotel was overbooked we were moved to this one which is part of the same organisation.
When we had accepted the change we found it this wasn't such a great place.
Not at all near the Ramblas and a taxi cost 12 euros (because of the heavy traffic). The rooms were dusty, shabby and not at all clean.
Breakfast was really nice and the beds were ok.
The hotel really makes an effort to help the English and the Spanish guests. The worst thing was that they tried to charge us more, luckily they couldn't because we managed to contact our travel agents.