Antonio was very kind, we arrived one hour later and he welcomed us with a Sicilian red wine bottle and water is the fridge. The flat is small but very clean, nice and functionnal and a very good deal if you like to be close to Ortygia: it is 2 min close to the entrance of Ortygia, where we spent most of our time. Supermarkets and awesome restaurants are very close, and the greatest thing was the local market open everyday with fresh food.
The flat was a little dark and cold but we used the heating system. Sometimes, we had some water drains smell but it is independant from Antonio and he is trying to fix it.
The neighbourhood was very noisy but if you have a good sleep, it will be ok! Antonio let us leave the flat at our convenience. Thank you very much Antonio, Ortygia was awesome!