Excellent flat! We were a family of 3 with a small child (18 months) and the flat had everything that we needed. Having a washing machine was particularly useful!
Marcos was very friendly and responded very quickly.
The location was excellent - it is a quiet street (somewhat difficult to find in a city!) that is a short walk from the main metro station in Benimaclet, which can take you all the walyto the airport. At the same station you are also able to take the tram down to the beach, which we used almost daily and found to be very easy. We enjoyed the Jardins del Real which were at the end of the road, and offered a nice environment to enjoy a coffee and let the baby run around. The flat is also close to plenty of restuarants both around Benimaclet (try el Aprendiz) and in the centre (try Kuzina), and you can get down onto the turia very easily.
I would definitely recommend this flat and we would certainly stay here again if we are to return!