Perfect location to spend a few nights in Florence (next to Mercato Centrale and walking distance to all major sightseeing spots and restaurants).
Not advisable for people with mobility problems are the flight of stairs are VERY steep to the apartment.
Wifi was a big issue too. We were told at check in that no one had ever complained about it, however we could barely load a page on google on our phones and as a result, had to spend the day outside in a cafe to work on our laptops.
In addition, the day before our check out, a man tried to enter our apartment several times without our consent. We later found out it was the cleaner who came to the wrong apartment, however it was unpleasant how he tried to enter with keys even though we repeatedly explained to him that it was the wrong apartment. It made us feel unsafe.
I would only recommend it for its location.