We have stayed at Alba's place for 10 days. Apartment is located closed to subway station and it takes only 10-15 minutes to get to the city center. There are couple supermarkets and several cafes right next to the apartment.
Apartment had all the essentials we needed including washing and drying machine (drying machine was shared).
Alba and Carlos helped us with directions and gave some useful recommendations, they also were able to arrange taxi pickup for us in the morning to go to the airport.