We absolutely loved staying here. Giuseppina's place may very well be the most authentic and charming AirBnB we have ever stayed at (and we have stayed at many).
The house is a huge mansion from the 1800's. All of the rooms have high ceilings, several with restored original frescos. The furniture and decorations are all period originals. The whole place just oozes old-world charm.
The house is divided into two parts. One part has two bedrooms (*), a kitchen, a bathroom, a sitting/dining room, and a balcony. The other part was in the process of finishing the renovation when we were there, and it has a kitchen (with original 1800 stove), a bedroom, a couple more rooms, and another balcony with a view of Mt Etna. There is also a garden on the ground floor.
The house is on a small side street from the main road, close to main square and within easy walking distance from most of the restaurants. It is easy to find free street parking.
Linguaglossa is the perfect base to visit Mt Etna. It is far less touristy and much more authentically Sicilian than the South Side.
The hosts Guiseppina and Sergio are the most wonderful and friendly people. They gave us lots of tips on hikes to Mt Etna and they even showed us some of the hidden gems in the neighborhood.
All in all, if you are looking for a authentic Sicilian experience away from the tourist crowds, this is the place.
(*) = You have to pass through the first bedroom to enter the second bedroom.