Update: my flatmates found a job in Ibiza and are moving out at the end of March... hence, it will available again April 1st, for several months, my original flatmate will be stuck in Wales quite a bit longer....
What is the status of your apartment these days? I'm finishing up a semester in Tarragona, then moving to BCN in June... any chance its still available? If not, it would be great to get together and meet another member of MadridMan in Barcelona!!