My friend and I came to Siracusa for four nights for a vacation and stayed at Luca's place. This apartment is in a location that is great for both going around the city and also leaving by car (if you plan to rent a car and do some sightseeing outside of Siracusa). It is about a 5 or less minute walk to the main road that leads to Ortigia where all the great nightlife and restaurants are.
As for the communication with Luca, everything was fantastic. He gave us amazing local recommendations and was incredibly quick to respond to any questions we had about day trips we were doing. He recommended some great restaurants and areas to see in Siracusa/Ortigia.
As for the apartment, it was just as it was in pictures and as advertised. He left breakfast and fresh oranges for us. The apartment has everything you could need as far as a washing machine/drying rack, big bathroom, airconditioning, couch/relax area and bedroom. The apartment was also very clean.
Overall, this accommodation was perfect for what we were looking for and I recommend it to anyone looking for a relaxing weekend in Siracusa.