Stayed in this B&B a couple of times. The staff are extremely helpfull and friendly, the rooms are clean and beautifully decorated with classic Italian furniture. Just outside the B&B you can walk into the tuscan hills full of olive trees and vineyards, sights I won't easily forget...
There is a bus going from San Casciano town to Florence every hour- this was a great way to visit the beautiful but chaotic city during the day, and returning to a quieter place for the night.