We stayed for 4 nights in Edu's flat and we enjoyed the trip so much. The communication with him before and during the days were perfect. He is answering each of your questions very fast.
Well, the apartment is really nice, clean, has all the stuff you need and is based nearly the Plaza de Catalunya (very central location in Barcelona and you have to walk just 5 minutes to the flat from there).
Just for your information: there is a 4 lines street in front of the building and during the nights you hear all the noises since the windows aren't very good sealed. But if you have a deep sleep it won't be a problem. ;-)