The host (Oscar) communicated with us promptly and his delegate (Jennifer) was very helpful and on time. She also arranged a taxi for us to the airport on our return which we really appreciated.
Our favorite feature of the apartment was the balcony. It has a good combination of shade and sun. Everything else is fairly basic, but we spent most of our time out and about, so we were fine with that.
There is an AMAZING restaurant about 6 blocks up the hill called La Panxe del Bisbe. It was our favorite restaurant experience in Barcelona. Make a reservation for 21:30-22h for the best experience.
Also, look for Mama's! It's also in the neighborhood. They have a shady back terrace and it's great for breakfast/lunch.
The Joanic station is convenient. All in all we had a great time.