Rory's apartment was exactly as described. And perfectly situated. You walk into the old city in a few minutes. The bus to the science museum stops 100 meter from the door. And there is a big shopping centre at the other end of the dry river bed (big park through the city).
There is an extensive guide in the apartment for stuff in the house and places to go in the city. But Olga (Rory’s contact in Valencia) is more than happy to tell you everything you want to know.