I have to agree with some of the other reviews, it really does get too hot in the apartment. You might think that you can tolerate heat, but this is "directly under an uninsulated black wooden roof in the Sicilian sun"-kind of hot. Unfortunately it takes a long time to cool off in the evening as well, even after it gets dark, and even if there is a nice breeze outside because for some reason the wind hardly enters the apartment.
But the terrace is really great indeed, very large with a large shaded area and several beach chairs. The shower works well and the kitchen is well-stocked.
I had some problems with the WiFi - it turned off for a short time every ~20 minutes. Might have been due to the router overheating.
With a bike you're at the beach in about 5 minutes, and the sea at Avola is really wonderful. Supermarkets are also close and some restaurants as well. Getting to the city centre is also easy by bike.