The flat is very okay for 5 persons, has a lot of space, comfortable beds, living and eating area, well equipped kitchen. You can do you laundry as well if you stay longer. We felt really like coming to a place which we know - easy orientation, everything on hand. Specifically I was really surprised about the cleaningness of the whole flat, including shower which is not a case for other places we were in. Flat is also simply very well kept, you do not feel that furniture, walls, paintings are worn at all.
Flat is easy walking distance from public transport as whole Valencia. There is big parking lot in front of the house, so no worries about parking. Short walk to beach and promenade. There are several Tapas Bars, restaurants, coffee shops around the place.
Your host Maria is really helpful, communicative, making sure everything is ready and makes you feel comfortable. Just ask.