I stayed here for a whole month. Alain met me at the apartment, the communication was super smooth, and showed me the place, the room, explained the rules and so on.
He is a verg kind person who likes to make sure that your stay is as comfortable as possible. The apartment itself has 5 rooms and 2 bathrooms and a shared kitchen. It's all very clean, very modern, equiped with everything you need for an enjoyable stay.
While the location itself is a bit far, you have both a subway station and a tram station very close that can get you to the city center or to the beach.
I highly recommend this place if you plan to stay or visit Valencia.