Franzisca is one of the best hosts I have met on air bnb, she is fast to answer, very welcoming, she knows a lot about what to do and what to see. The flat has everything you need, very clean and there is food ( and coffee;) free to use which is just terrific ! About the location I'm is just next to public transport, about 20 min by walk to city center of 8 min by bike. It is next to university so there is a lot of restaurants or bars to go close to the flat without going to the center. Enjoy Valencia ;)