Beautiful, spacious and clean unit, but has some serious cons.
1) Location. It is 1.2 miles from the train station, a 26 minute walk through busy and crowded streets with narrow, potholed filled sidewalks. Very difficult and tiring to manage with luggage. Plan to take a taxi. However, even without luggage, we are a group of avid runners who found the walk exhausting trying to get home from sights after a full day of already walking. From the listing it sounds like it is only 10-15 mins walk from most things. At minimum plan on 20-25. It is 30+ minutes walking to the Piazze dei Signore, the Uffizi, etc.
2) Noise. The unit is located on a very busy street, with loud car traffic starting at 5:30 am every morning. The windows aren’t super insulated, so we were awoken very early each morning by cars and trucks and people on the street. Even with white noise, it was difficult to get good rest because the street volume was so loud.
Though the hosts were very kind and the apartment was very nice and clean, I would not recommend this place to visitors who plan to spend lots of time seeing the Florence city sights. It’s just too far away and too noisy.