A wine-grower and a signora (his mama, I guess) run this cantina (wine cellar). Marco (the wine-grower) lives in 4th generation on this property. We booked a wine-tasting together with our hotel ("I Castagnoni" in Rosignano Monferrato). Mama (very lovely person) served antipasti and different wines. Everything was very delicious and we felt like being at the house of our grandmother, very comfortable.
After the tasting, Marco showed us the cantina, including the ancient and the current facilities for producing wine.
I would completely recommend this trip.