We didn't meet David, we met his father, who gave us a tour of the apartment and was very kind. Even though David wasn't here, the communication was excellent, he gave us very good tips to visit the city, rent bikes and there was even a bottle of wine offered at our arrival. There were also pasta and breakfast food, which was great.
The apartment was exactly like on the photos, very spacious, clean and well located. We particularly enjoyed the terrasse and the large bathroom, as we were 4 girls.
I would definitely go back to David'a place if I returned to Valencia.