Since the owner stays at the winery office a few minutes away, when you get to the agritourismo, you have to call him and he'll be up in a jiffy to check you in. Not really a big problem, but we were confused when we got there, as was another guest.
It says he speaks English, but actually he barely speaks any English. That being said, he works really hard to communicate to you and is very friendly.
The wifi was also very unstable (can connect to the router, but the router was not connected to the internet). We only managed to get internet on one morning. The owner was disheartened to find that out but didn't know what to do about it.
This was a wonderful place to stay. The owner was rarely on-site (usually only for breakfast [which was pretty basic: tomatoes, bread, cheese, jam, boiled eggs] or in the evenings), but he does his best to make sure you have what you need. He barely speaks any English, but he's very patient and will find a way to communicate with you.
The view is beautiful and the grounds are very clean and great for all ages and activities. If you have kids, there's a playground with toys. There's a sand volleyball court and a fantastic swimming pool as well.
As far as location, my wife and I found it perfectly located. 15 minutes to Arezzo, about 40 minutes to Siena, an hour to Florence. Plenty of wineries around as well (Il Burro is 10 minutes away; Castiligon Del Bosco [which we loved even more] is about 30 minutes away).
The room was clean, spacious, and super-comfy. We had the apartment which had a full kitchen along with pots and pans.
All and all this place is well worth the money, and a wonderful place to come home to after exploring Tuscany or just spending the day relaxing and drinking wine.