7 of us (of which: 3 grandparents and two children aged 6 & 9) had a fantastic stay at Andrea's house. The views were amazing. The house is much bigger and more comfortable than it appears in the pictures.
Also, being in the mountains it wasn't oppressively hot during the day and we did not miss air conditioning at all.
You do need a car, the roads are mountainous but splendid.
We found it a good base camp for day trips to both Etna and the riserva naturale dello zingaro.
Had a brilliant holiday.