Giovanni's & Salvo's apartment is one of the most exquisite places I have ever stayed; they are both architects and it's very easy to identify that from the apartment's design and decoration. The place was extremely clean and it was a very comfortable accommodation for the 3 of us, but even 4 would have been fine since the double sofa is very big and can easily accommodate 2 people. The location is amazing, less than 10 minutes walking to the central square of Catania.
I would totally choose tp stay at this place again if I ever re-visited the city, highly recommend it to anyone looking for an authentic but also economic accommodation.