This is a true 5 Star hotel, in fact if a hotel could be higher than a 5 star, this hotel would be it. It is a boutique hotel created out of a former mansion, with about 20 rooms, but has all the services one would expect from a luxury hotel. Our room was huge and very well appointed, and the bathroom was also a good size. The included breakfast was served in the atmospheric cave-like rooms on the bottom floor, with a nice variety of items on the buffet, and waiters to bring eggs or omelets, and coffee drinks. Our rate included use of the spa, which is by appointment. One has private use of the steambath, a relaxation room with tea, and the pool, which is in effect a huge hot tub with jets.
The hotel is located just across from the Duomo, and across from a vista of the sassi. It's an easy walk to the shops and many of the sights, including the cisterns.
I highly recommend this hotel, it's a special treat to stay here.