One of the best values I've ever experience through Airbnb, hands-down. If you have never been to Florence, you definitely want to stay at this spot. The view of the Duomo and bell tower from the personal apartment terrace are as good as it gets in the city without the crowds of tourists. The amenities made us feel right at home - Washing machine, great internet, and air conditioning. The place was sparkling clean and Federico's cousin gave us many local tips to help us make the most of our time in Florence.
One note - this place is at the top floor of their building with no elevator so if you aren't able to climb a lot of stairs every day, you might want to consider a different option.