San Giovanni in Poggio was even more beautiful and serene that I could have imagined. We spent 10 days there, with Francesco (the owner) as our trusted advisor for winetasting, restaurants, local shops/groceries, and day trips in Tuscany. Everything about the visit exceeded our expectations, and the apartment we inhabited (Crepuscolo / "Dusk") was beautiful, tranquil, and well-appointed. The radiant floor heating, wi-fi, tv, fireplace, outdoor grill, dishwasher, clothes washing machine, stove/oven and round-the-clock hot water were all flawless. We had our own Italian villa with the most gorgeous views and friendly townspeople in nearby Monteroni D'Arbia. Franceso provided a lot of help during our trip, and his list of must-visit restaurants was right on target.
This place is a 15-minute drive from Siena, with about 3 km of well-maintained country road leading to a 2-lane divided highway for another 9 km or so. I recommend parking in "Il Campo" for visits to Siena. We took side trips to Certaldo (Annie Adair's tour, highly recomended!), San Gimignano, Volterra (cooking class by Guiseppina Pizzolato), Montalcino (where you can bring your own bottle of wine to many restaurants), San Giovanni d'Asso (truffle museum, olive oil harvesting nearby), and Monteroni d'Arbia's own Il Borgo for artisanal salumi and fresh meats.
If you plan to reserve SGiP for the twice-annual Palio horserace (2 July/16 August), you'll want to book in January to make sure there's space.