Albergo Bernini
We actually stayed in the apartment owned by the Bernini family. Upon check-in we went to the main home (which has nine rooms, a common area with TV and beautiful terrace with a view). The family that runs the place speaks a little English (just enough). After check-in we were taken down the hill to the apartment which had a kitchen/dining space (with a small TV and couch), master bedroom and a bathroom (cold shower, sink, toilet, bidet). All in all it was bigger than it was comfortable, more homey than luxurious, like staying at your grandma's house. The regular rooms run around €80 and the apartment was €100. For an extra €7 you can have breakfast on the terrace.
From journal Sleepy Evening in Siena, Italy