Sebastiano is a very kind and perfect host. You feel very welcome at his apartment and he is always there when you need help. He arranged a taxi for us to the airport as well and he had some very nice recommendations to visit. At his apartment he has all the information about Catania on paper for you, which is very helpful. We had a very warm welcome at the apartment with some nice gestures of food, drinks and fruit. The stay at the apartment is recommended for sure! The only disadvantage is that it is a bit humid inside the apartment, but at the other hand it does not get too warm inside (even when it is 35 degrees outside). The location is a 10-15 min walk from the city centre, which is not far.
What I would recommend is to rent a car so you can visit all other beautiful places of Sicily as well, such as Taormina, Syracuse, Cefalu. The beaches near Catania are okay, but it is really worth it to go to Taormina or near Syracuse to visit some beaches.