Our stay in Barcelona was fabulous and staying where we did allowed us to walk just about anywhere. The metro station for Line 4 is right at the end of the street and it will go to anywhere you can’t walk. I recommend buying a 10 trip
Ticket for the metro for $11 instead of buying a single one each time. We found lots of fabulous restaurants both for tapas as well as dinner. Don’t skip the gin bar called Cactus Gin Bar. Or the fabulous bodega La Palma which doesn’t open until 7:30 and doesn’t take reservations, but if you show up right at 7:30 or a bit before you will get in. I highly recommend staying at this apartment.