The apartment is really lovely (as nice as on the pictures) and we found everything we needed during our stay. It is not exactly downtown Valencia, but the inner city is in walking distance, as is the train station and the metro station with connection to the Valencia airport.
Across the street, there is a really nice market, with a couple of market stands selling ecological fruit and veggies, bread, coffee etc.
Communication with Natalia and Victoria went smoothly, they always got back to us superquick when we had questions.
Absolutely worth a stay!