I highly recommend this Air Bnb for the following reasons:
1. Location/View: can't beat it. Right around the corner from the Duomo, short walk (12 minutes) to the train station, etc.
2. Cleanliness/Amenities: the apartment was very clean and had a well organized lay out. The laundry was very convenient for us, as Florence was a halfway point on our journey
3. The hosts: the communication was superb - before and during the visit. You won't feel alone while you're in Florence
4. The extra touches: soap/shampoo, detergent, guestbook - all provided and well thought out