We spent two weeks at Raffaella's apartment in Ortigia in September and were truly happy with the place!
The location is perfect (beautiful old and quiet street but right next to many restaurants, a supermarket and all the attractions).
The place is very clean and is well equipped (we cooked several times) and Raffaella lives right next doors and is always available, Communication is great. The place is also much more spacious than on the pictures and has WiFi!
I can only recommend this place if you are looking to stay in Siracusa/Ortigia!