We spent 3 nights in the appartament of Marco that is situated next to the beautiful Bellini park. The app. is very good and clear, downstair is the chill-out part, the kitchen and the bathroom, upstairs the bedroom.
Shopping streets (via Etnea and Corso Italia) = 5-10min
Supermarket = 5min
Station = 20min
Duomo = 10min
so this is the best place to see Catania. The area is calm and good. We can recommend Marco's place, lets go! :)