We stayed in the apartment for one night. Caroline was very helpful with helping find our way around, and was very responsive when we needed help finding parking.
The apartment was very clean and cozy.
The location is a few minute walk away from the Duomo, which is exactly what we were looking for.
One thing to note: If you're arriving by car the apartment is in Area C, which means you'll have to pay a small fee for bringing a car into the area, and the apartment doesn't have it's own parking spot. There are many parking lots within a few minutes walk from the apartment though, and you can pay the Area C fee in any of them. The parking lot cost us 30 Euros for one night.
Thanks a lot for a great stay!