My apartment is a nice place near to many touristic places, Fira de Barcelona is just across the street, also the Montjuic with its amazing fountains and Museo de Catalunya. The bus, renfe and subway station are just ahead; you'll just have to walk a few steps to connect yourself to the rest of barcelona.
Theres the bus stop for the airport, Aerobes pases every 2 mins and the 46 (cheaper) every 10mins.
. My place is good for couples, solo adventurers, and business travelers.