We had a wonderful two-week stay in Catania. The AirBnB is in a great location, walking distance to Via Crociferi (with several historic sites) and Via Etna (for shopping). The apartment was well-appointed, clean, and very functional. Being on the ground floor with good air-conditioning was very much appreciated given the 40+ degree temperature outside.
For us, the only slight negative point has to do with the central location: passers-by were occasionally loud.