it's about 30min from city center (by public transport) but it is close to streetcars and bus stops, and it is located a couple of blocks from the beach (which will be amazing for summer season!). They gave prompt and kind service. Overall it's a good place to stay in Valencia.
heads up: they do have the flatware/silverware/coffee maker but you shall bring your own oil/seasonings/sugar/coffee if you plan on cooking in the flat. In others airbnb we've stayed they always had it so it took us by surprise (luckily its 10mins walk away from a Mercadona).