Alessandra's place is really wonderful and even better than in the pictures (in my opinion). It's very well located and close to the main streets/attractions of Catania, as well as to public transport if you wish to visit other places around Sicily.
Everything was very clean and organized when we arrived and the apartment has everything you need for a pleasant stay. It also has a lot of lovely little details to make the place feel more cozy and welcoming, which we really loved.
You should be aware that it is on the 3rd (last) floor of the building without an elevator, which in our case was not an issue at all and it gives a lot of privacy, but just something to consider.
Alessandra and her husband were also great hosts and were very quick to respond to any questions we had. I'd definitely recommend staying at this place if you're visiting Catania!