We had a great stay in Syracuse. The flat is located very well, close to two beaches within two minutes walking distance. The balcony fits two people, so you can enjoy the view over the ocean when having a meal. The flat was equipped very well with cooking utensils, washing machine, etc. and was very clean.
Regarding check-in and the parking situation on the island of Ortygia (Syracuse): Since Olga (your host instead of Giorgio) does not live in the area, you will need to commit to a certain time for check-in. Be aware that the traffic situation in Syracuse can be difficult - there's regularly traffic jams and visitors can only park on the island in designated parking areas (There's a parking garage, called "Talete" parking, on the island, where parking costs 15€ per 24h). You can park there or off the island. The municipality restricts access to the island by car in the evenings (be aware and check the times), so you can only enter in the mornings and during the day, but you can leave whenever you want.