The host was super helpful and gave me a lot of suggestions. The view from the window is astonishing, on the roof one can see the whole city and the sea. It is convenient to get to the beach. You can find everything you need in the kitchen.
The location is ok, but one should take at least 25 min for walk to the center of Ortigia/Train station, it's not a short distance in the hot summer, since there is no public transportations. There is no WIFI signal in the room where I stayed, but you can get connected in the kitchen with very low speed. The bath was not very clean.