This is the second time I'm booking Salvo's apartment so I'll add some more points.
It may seem on the map that the apartment is a bit far from the center. It's actually not. It's just 15 minutes walk from the central square with St. Agata Cathedral, and it's still a typical old Catanian district with its atmoshpere.
Salvo is a great host and he's always helpful and keeps a contact with you.
I'm happy to stay at his place.