Look no further. Stay at Lorenzo's place. It is close to absolutely everything and you can see the cathedral as you go out of the door. The kitchen is well equipped, as is the bathroom, the WIFI is fast, there is a gourmet grocery store right across the street called Eataly ( recommended by Rick Steve's), a Gelateria next door, a restaurant with gluten free options just down the street, air-conditioning, laundry and it was just so comfortable. Add to that the superb communications with Lorenzo and you have the best recipe ever for a wonderful time in Florence.