We had a great time in Barcelona and we enjoyed our stay in Francescas apartment although we didn't met her.
It was very clean and comfortable with big windows and bright rooms.The area is great, just a few minutes walking distance to the Rambla, the port and to a little supermarket.
We went to the Tapa bar Jai-Ca which you've recommended and it was very good- especially the fish Tapas.
Thanks!