Alex was a friendly and helpful host. His apartment is in walking distance from the Ruzafa district, and you can get to the city centre by bus (5-10 minutes walk to the station).
We went there for New Year, and unfortunately it was really cold inside the apartment, although there's a heating for the bed, so if you go there in winter it could be a good a idea to bring some house shoes. At night it sometimes was a bit loud from the streets, but apart from this it was a nice place for our short trip.