We stayed at this place for 5 nights. For the pros, the apartment seems to have been just recently renovated. It was spacious, modern and clean. Its location was better than expected : Around 8 min walk to the palazzo Vecchio, 10 min to the Cathedral, and around 25-30 min to the train station. So there is no need for a car or public transportation to get around and visit the city.
The only negative thing in our stay was that the apartment is a bit cold during the day ( around 19° Celsius or 66° Fahrenheit displayed on the thermostat) but gets very cold during the night (around 17° Celsius or 63° Fahrenheit displayed on the thermostat), since the heating is set to work at programmed hours from 6:30 am to 8:00 am, then from 12:00pm to 1:30pm and from 5:00pm to 9:00pm. So i advise to pack some thick pajamas for the night.
All in all, we had a very pleasant stay and Stefano was very fast to answer any of our questions and messages.