We rented Franc's place for roughly a week and it worked out terrific. It was a 10 minute walk from the Barcelona Sants train station and 30 second walk from Plaza Espana. The apartment was surrounded by restaurants as well as several grocery stores that remained open 24 hours which was extremely convenient. Franc was extremely accommodating, welcoming us with a complimentary bottle of wine, champagne, and basket of croissants. He gave us tips on all sorts of things from breakfast places to where to shop and eat to the use of the metro and busses. Apartment also had everything we needed as far as washing machine, kitchen appliances, dining table, nice bedroom (2 bedrooms) with comfortable bed, clean bathroom, and ample space.
The apartment worked out great but what really made the experience memorable was Franc's hospitality. Was so easily accessible via WhatsApp and so quick to respond whether it was the evening we arrived, questions we had during our stay and the flexibility on what time we left and storage of our luggage.