I and my friends had a great one-week-stay in Ricard and Arturo's apartment. The communication with them was very good and they took care at all times that we have everything we need.
The apartment is located in the proximity of the Joanic metro station, only 15 minutes on foot from Sagrada Familia. Gracia district offers plenty great restaurant and bars, as well as shopping options.
The only cons that I have noticed is that the building is not so well isolated, so noise from the neighbouring apartments can be heard.
I would warmly recommend this accomodation to other travellers and I would book it again myself.
Thank you Ricard and Arturo for making our stay so pleasant!