We had a good time at Claudio's house. Claudio responded quickly and was very helpful. Now, to the pros and cons.
Pros: 1) clean, comfortable and spacious house with the beautiful garden; 2) very quiet and peaceful location; 3) hospitality of Claudio and his family; 4) amenities like jacuzzi and pool
Cons: 1) location is quite far away from cities/shops/attractions, the car is highly recommended; 2) if you are looking for 100% privacy, note that there's owner's family house and the garden territory is shared (though we didn't have any problem, most of the time we were alone there and actually I enjoyed the encounters with Claudio's family); 3) small traffic jams between 08:00-09:00 and 17:00-18:00 in Giarre, if you are driving
Tips: 1) it's only 30 minutes drive to Etna from the house, highly recommend to get there, but take warm clothes and trekking boots, you can combine the trip to Etna with the visit to Parco dei Nebrodi; 2) also recommend the trips to Caltagirone and Agrigento: we visited both during a 1-day trip (~450 km in summary), and took SS417 road to Caltagirone, which is really beautiful.
Summary: we loved our stay there, thank you Claudio!