The appartment is 15 minutes away from the central station and downtown, the airport bus stop is not far from it. Adriana's place was spacious, with everything you may need during a holiday (micro, washing mashine, tv, air condition, fridge... ), it is on the second floor, so you need to climb some steps, but not many. She was very communicative and helpful, waited for us late at night, so we could check in.
Catania itself is not so charming, but you can reach amazing cities like Taormina, Aci Trezza and Siracusa from here, so it is a great starting point.