GREAT central location for exploring the city. Apartment was cozy, clean and quiet. Ivan was wonderful - he was there when we checked in and gave us some good tips and answered our questions. El Raval is a great neighborhood with tons of local restaurants, bars and shops. We really only slept in the apartment because Barcelona is such an amazing city with so much to see and do that we were out and about the whole time.
Warning: If you are not fit or don't like climbing stairs, this is not the place for you. There's a ton of stairs to the top floor, so consider yourself warned! :)