We (three guests) had a wonderful week at Gianluca's first floor flat. The flat is comfortable, a good size for up to four people, and very clean. Ortigia, the neighbourhood and island that is part if Siracusa, is charming and full of lovely eateries and fantastic sights. Thoroughly enjoyable.
Gianluca was responsive, reliable and looked after us very well indeed.
Ortigia is an ancient town and I guess that the water supply is also old as we experienced low water pressure on one of the days. Siracusa was perhaps a little on the cooler side while we visited (beginning of April) but pleasant enough in the sunshine. The advantage was that there were not too many tourists and I imagine that the place would be much busier in high season. Even so, it is nigh impossible to find a parking place (other than the municipal pay-for parking). Cars are not allowed in the narrow streets at night which made for a lovely quiet atmosphere in the evenings. Everywhere on Ortigia is within walking distance. The rest of Siracusa can also be reached on foot as long as you do not have trouble walking.
Gianluca's place appears to be rented on a commercial basis and is definitely worth a visit.