nice hostal, convenient for the Metro. From Barca Sants take the metro to Sagrada Famila then change lines and get off at Tetuan, then 3-4 mins walk. Buy a ticket for 10 trips for 10 euros, valid 1 year.
Impressed by the breakfast, staff very helpful, couldnt figure out from the blurb whether towels were included so took one but when i got there i was asked if i would like a towel free of charge.
to get to the airport no need to go back to Sants, walk 20 mins to Passeig de Gracia Metro (corner of Passeig / Arago, next to Burberry), into Renfe, if you have bought the ticket for 10 journeys it is valid. Trains every 30 mins to airport 02 and 32 past the hour, takes 30 mins.