We stayed here for 10 days without the car and it was great! The public transportation was so convenient and one metro station was just a little walk across the street ( L1 red line Rocaford station). We bought 5 days metro passes in the station twice ( to cover our 10 days trip) to get on the metro trains and buses. We also went to Barcelona Sants train station by metro to get on high speed train to Salvador Dali museum in Figureres and took a local train to go to a seaside town called Sitges. We loved it.
A fruit stand is right down stairs, several restaurants around which we enjoyed. There is a electronic store just two doors down to get plug converters if you are from USA like us. A great bakery called 365 cafe and a grocery store right next door are just half a block away. We went to the cafe for breakfast with fresh squeezed orange slush and bakeries. ( Their ham and cheese sandwich is the best.)
We were there in early July and it was hot. One air condition in the flat which was ok. The rooms were a little warm for us but with the fans still acceptable. Cute decor throughout the flat. The shower water pressure was strong which was nice. We made a call at the airport and a lady met us downstairs to let us in and showed us around. We enjoyed living with the locals and have a taste of the city life.
Overall we had a very nice stay and we appreciate it!