Good points : The flat of Francesca was very clean, of good size and fresh.
Her mother and her quickly answered our messages and she welcomed us in good conditions (even if our flight was late, which was very kind of her).
Bad point : the location in Napoli, close to the railway station can be convenient, but we did not feel safe in this part of the city, which is one of the poorest. I think 400€ for the week is too high considering the location.