We loved our two-week stay at Marta's place! It was easy to find, and centrally located! We walked on some days and chose the bus and metro on others. There is a grocery store, bakery, and many food options really close to the apartment. The apartment has wonderful amenities and comfortable beds. The four bedrooms allowed my family the space necessary to unwind and read or write, at the close of each day.
If you're in Barcelona, definitely choose Marta's place! You won't be disappointed.