We stayed at Lisania's apartment for nearly 10 days. It is located centrally in Catania, very convenient for visiting the sites of interest like the Benedictine Monastery. There is a supermarked called Penny Market within walking distance, and there are a few really lovely restaurants around.
La Taverne du Grand Albero is literally at the other end of the same building, the food is amazing and the prices are very reasonably. Same for U Sapuritu, a very nice restaurants just a few minutes walk from the flat.
The communication with Lisania was very good. The flat was prepared well for our arrival and had all things needed, even a few facemasks which are now required on the buses in Catania.