Extremely well positioned, about a minute walk from the Duomo and a maximum of 10 minutes from any of the main attractions in Florence, and the view is sublime.
The apartment is on the 4th floor and so getting a large amount of luggage/shopping up there is quite an effort. The A/C is excellent (although the kitchen does not have it) and so you are able to keep the apartment at a comfortable temperature.
I would suggest bringing a laptop and an HDMI cable (or chrome cast/amazon fire stick) in order to watch TV, as all of the channels we could access were in Italian (unsurprisingly).