We stayed at Sergio's place for four days. The appartment is newly renovated and fully furnished and equipped. Further, it was very clean. Also it is located in a modern building, close to the sea and to Corso Italia, where we found some very nice cafés. All necessary shops for daily needs can be found within short walking distance.
Sergio is a very welcoming host, even let us check-in late at night and we found a bottle of sparkling wine and some fruits on the dining table. He provided a folder with many tipps for Catania and surroundings. For us, the appartment was perfectly located as you can reach the highway towards Mount Etna and Taormina within a few minutes. The parking lot is a big advantage in such a busy city like Catania.
I would definitely recommend Sergio's appartement and Sergio as a host in generell.