Very nice, spacious apartment. We found a bottle of water waiting in the fridge – a great thing to have, given that even in late September it can be quite hot during the day. Our host was very nice and helpful, any problems we had were quickly remedied.
The apartment consists of a living room, kitchen, bedroom, bathroom and a big sunny patio. The living room is really beautiful, very nicely decorated, the kitchen fully usable (we cooked for dinner every day), with an old, slightly arcane, but fully working washing machine. The bedroom has AC, a nice large double bed and a big wardrobe. The bathroom had a walk-in shower and looked like freshly renovated. The patio is large and spacious, with a table and chairs plus deckchairs and looks out to a (small, rocky) beach with a beautiful panorama especially at sunset.
Mosquitoes seem to be a big problem in the area this time of the year (end of September); we had lots and lots of them in the bedroom and couldn't fully get rid of them despite keeping the window closed and using the mosquito plugs that were provided.
It's also not ideal if you intend to travel around Sicily a lot by public transport, as it takes quite a while to get to Catania by bus (which runs pretty regularly from a bus stop a 2-minute walk away and usually leaves on schedule); by car, it should be a lot better, though the traffic takes some getting used to.
It is however quite ideal if you want to relax and unwind for a few days by the sea or don't fear driving in Sicilian traffic.