We spent nearly a week at Phil and Fiona's flat and really enjoyed it. They were very helpful - we bought tickets online for the tram up My Juic only to learn after the fact that we needed hard copies, and Phil and Fiona went out of their way to print them up for us. The flat is convenient to the metro and very handy to Carrer de Blai, a pedestrian street loaded with tapas bars, gelato, and markets.
And, by the end of the week, the 100 steps felt like only 50!