I stayed here for 3 months and I guarantee this is the best location in Florence. If you are here for vacation or long stay your have everything near. Duomo is only 5 min walking. San Lorenzo is right around the corner. All the attractions are within a 10-20 min walk. Train station 5 min walking, you can even walk with your suitcase.
Expect the apartment to be on the 4th floor with no elevator. Small kitchen but has everything you need. Wifi is slow but there is a wifi coffee in front of the apartment. Laundry next door with kind staff. Supermarket and Mercato Centrale near. You can always find something to eat near this place.
Francesco was great with communication, always willing to help. Hope to come back to this place!