The location alone makes this apartment truly exceptional. It's an easy 10-minute walk from the train station and less than that to walk to the Duomo. Plenty of restaurants, gelaterias, and shops nearby.
One thing to note is that the Wi-Fi is good, but only works in the living room (no Wi-Fi in either of the bedrooms). This is more of an inconvenience than anything else, but something I wasn't expecting.
Even though this apartment is facing out to the busy Piazza di San Lorenzo, it's very quiet in both of the bedrooms. Easy to sleep without being disturbed by activities in the square or by church bells throughout the day.