We stayed at Giusis house for 2 nights. Everything was perfekt. She answered all questions very quick an friendly. Her sister lives in the same house and we could ask her, if there were problems. One day the heating wasn't working but the sister fixed it quickly, so we had hot shower and heating again, which is not sure in Sicily :)
The flat is big, tidy and fully equipt. The view from the balcony is nice, beside of the rainy weather during our stay. The television has got lots of international channels. With better weather conditions Tortorici could be a nice place for hikingtours in Nebrodi.