We had a great stay at Marcos' place. Barcelona was very hot when we were there but there was strong air conditioning in the living room which filtered through to the bedrooms. The kitchen is sizeable too. There is a train station with links to much of the city very close by and bus links directly outside too running all night. The walk to the main heart of the city centre is about half an hour but it is a nice walk and there is plenty to see on the way. Carrefour is very close too which is helpful. Overall I would recommend this accommodation highly