We spent some days in this apartment during the Easter holidays. The location is perfect, directly at the duomo with a great view from the roof terrace (which is shared with the rest of the house, but we were always alone up there). The rooms are spacious, each with an en suite-bathroom, and the apartment is equipped with everything you need. The windows are sound proof which may be necessary to shut out noise from the crowds at the piazza del duomo. Luca is very friendly and helpful, check-in and check-out were really uncomplicated and Luca‘s restaurant recommendations good.
If you come by car, you have to pre-book a parking in the ztl to avoid a fine, or park outside the ztl. Luca also recommended a parking which was not far from the apartment, but getting there through the crowds of tourists and narrow streets required some nerves.
All in all: This is the place you want! Thanks, Luca!