Lorenzo was easy to contact and communicate with. He was very accommodating when we arrived late at night and did a great job checking in to see if we needed anything during our stay. The apartment is in a really lovely location 1.5 blocks from the Duomo. It was a great place for my mom and I to stay.
The only thing I'd note is that taller people might have issues with the loft/bedroom area. The lower entryway and ceiling were fine for me and my mom (both 5'5"), but I can see taller people possibly getting annoyed with having keep their heads low in the loft area.
Overall, a fantastic place to stay in a central location and good amenities.