Jose is really quick to respond to messages and very arranging. When we arrived in Valencia, Jose was very welcoming, he showed us the apartment himself and gave us precious information about Valencia. There is supermarket just next to the apartment and a lot of restaurants or places where you can buy paella.
I recommend you to take the bus to go to the city center because it is located next to the flat compared to the metro. It takes you around 30 minutes to go to the city center.