Elisabetta is a perfect host. Lovely, available and always willing to help you. She also speaks a good english. She helped me find stuff to do in Catania, find interesting restaurants, bank and even called me a taxi since I have no phone. You don't feel like a client, you more feel like a friend visiting!
The appartment is also perfect. Large, luminous, clean, comfortable, smells good, well equiped and the location is perfect to visit a lot of stuff from a walking distance. Strong wifi connexion (in supplement $). The price is very very low for what you get.
I was traveling alone and was a little surprised of the neighborhood. It looks a little crapy and chaotic. But it was just a first impression. In fact, the neighborhood is safe, it's just the Italians that are so noizy and drive like crazy! Not noize in the appartment with windows closed and building very, very safe (double doors, double locks).
A tip for travelers : learn italian! Not a lot of people are speaking or understands english in Catania.