I've lived in this apartment for 2,5 month and it feels like my new home! Everything is exactly as the pictures and Rosa and Xavier are the best host I can imagine. As well the location in Gracia, close to Diagonal is perfect! Rosa gave good information before about the rules of the apartment so everyone are on the same page, for me it's not too strict but normal to clean after yourself. All the roommates have been nice but we've mostly met in the kitchen, so not too social. Maybe better for those who want calm and a safe place than social.
The only negative thing was the sound/traffic from the street, which I got used to as well as a little cold in the apartment from time to time.
Overall, highly recommended :)