We were 2 couples staying at Diego's villa for a week. We very much enjoyed our stay. The house has a very big garden with multiple areas you can hangout, relax, eat outside.... There's also an outdoor shower, BBQ and hammock you can use. As for most places outside towns in Sicily you really want a car to get around, unless you plan to stay at the villa and close-by beach The villa is part of a gated compound and you can park the car in there.
The house is not directly at the beach and there is no sea view, but you can walk 5min to the (technically private) beach. You will get a key to the private beach access, which is shared amongst few villas there. You can also not hear the ocean from the villa's garden, but you can slightly hear the traffic from the main road....absolutely at accepting level, but if you are looking for 100% tranquillity, then this is perhaps not your place.
Diego, his wife and son are super nice and welcoming! Communication very prompt and easy and they prepared a whole table full of food specialities and wine for us! Even if they stay in their half of the villa for some days, you always feel like you have the place to yourself really.