We spent 3 nights at Cosimo E Pina Bongiorno at Forza d'Agro in July 2015. We kept contact with host's son Stefano, who was there for vacation, spoke fluent English and was able to give necessary information. The hosts were friendly, told us the best spots to visit and gave a mini-tour on the way to the apartment. English speaking hosts were rare to find during our stay in Sicily, so this was a major plus.
The house itself has three floors, the air conditioning was on the first one. The 2nd and 3rd (only a bathroom) was cool enough to sleep, but it would be better to have air con there as well as it gets warm enough in July.
The gem of the house was a terrace which gives an outstanding view of the coast and the mainland Italy. The photos looks good, but the real thing is much better. You can't quite enjoy it at morning, because the sun hits directly to it. But we took advantage of the view in the evening and the terrace was enough for 5 five to chill out.
The kitchen was just enough for 5 people, it was well equipped. First floor's bedroom had a queen-size bed and air conditioning, which did a great job at cooling the room and the kitchen in the morning. The other bedrooms were OK: simple, clean and spacious enough. But the air-con in the 2nd floor would be good :)
The apartment has two fully equipped bathrooms, the larger one in the basement.
The apartment didn't have a private parking spot, but we parked for free on the street. There is 2-3 minutes walk up to the apartment, so this is not the problem.
We really loved the town - not only it is a place where they shot The Godfather, it is not very crowded with tourists. In general the town and has many good restaurants. The town is clean, has nice streets, some churches and it castle. After long day of driving around we always came back for dinner to Forza d'Agro.
If you wish, you can quickly reach Taormina, Acireale, Acitrezza and Alcantara natural reserve from here by car.
All in all we would say it was the best stay during our two week trip in Sicily.