This place is just perfect! Cosy house, equipped with everything you need in picturesque surroundings. During the night it is so calm that you may sleep like a log.
Very good location for exploring Etna, Rifugio Sapienza is only in 30 minutes drive, so you can be the first in queue to funicular in the morning. Ragalna has a good butcher's and fish shop and even supermarket which does not close for siesta - all these easily reachable by foot. As it was mentioned in other responces, Ragalna is about 1km high above the sea, so the temperature here is couple degrees lower than on the sea shore. This is definetly an advantage during the hot summer, but in the middle of autumn the same thing may a little disappoint you.
Eleonora is very responsive, communication with her was easy and quick. Her parents, who met us in the house were kind and helpful, despite our incompetence in Italian we've always managed to understand each other.
I definitely recommend this place to all my friends and hope to come here back again.