We stayed in Florence for one night. I will start with the positive: The location of this apparent is very good. The rooms are of good size, and the place is organised nicely. You need to be aware that the apartment is on the 5th floor with no elevator. Also if you come by car, you need to be aware that this is a ZLT zone… you cannot park on the street only in (very expensive) private garages. (We paid 40 euro for one night just for the parking as we had a big car. For reference, in Rome we paid 20.) This is of course not the owner’s fault, but is a thing to take into account when planning expanses of the stay. Another extra expense to take into account is the charge of 5 euros per person for bed sheets and towels ( which were clean and comfortable).
The negative side was mostly that the floor was very dirty and in places rickety. These should be fixed…
Enjoy you stay in Florence. It’s a beautiful city.