Andrea was great about communication and a good host.
The best part about the apartment is its location; super close to the Duomo, easy walking distance from the S.M. Novella train station, groceries, and just about everything else! The neighborhood was super safe. There's some street noise in the early evening, but it quiets down amazingly by bedtime.
The apartment has all the necessities: good shower, sufficient cookware, bed & closets, etc.
A few notes: The bed is a bit uncomfortable. not anything that prevented a good night sleep, but worth noting if you are sensitive to that. The floors can be a bit cold in the winter months - pack socks! The elevator is great to avoid stairs after a long day sightseeing and I loved it, but it might be a bit cramped for anyone claustrophobic.
A great place to stay!