We spent 1 week in Mamma Maja and actually came back for a second one because it was so nice. The place is gorgeous in the middle of the country side. It has 2 separate houses that each can hold up to 3-4 people easily. We have been there with our teenage sons and they had a house on their own which was relaxing for all parts of the family. Each house is fully equipped with queensize bed, additional queensize couch bed, kitchen and shower bath. The interior is nice rural Italian style.
But the amazing thing is the outdoor. The pool is nice and fresh even on hot summer days (and it was hot even for Sicily), there is always a breeze and the view is spectacular. We have been in various places in Sicily but here you have a full panorama view from Siracusa down to the southeast end of Sicily. You have tons of space and the next neighbour is nowhere in sight.
Just a couple of words of caution (not negative for the place but rather for untrained Sicily travellers) - the house is in the MIDDLE of the country side meaning: the private street that leads to the house is interesting even for Sicilian Standards - don't come with a sports car and calculate 30min for your trip from Avola - better do your shopping before you drive up in the mountains. And be ready to encounter wild life and be in a very lonely and remote area - all of that not dangerous but still unusual if you are a city kid. Enjoy the wonderful stay and a big thank you to Salvatore and his wife if you meet them.