I've stayed on many, many AirBnBs over the years in the United States and around the world. Jacopo's place is close to near perfection as it can get. His mattress/pillow/bed is more comfortable than my own home's. Renovated apartment with everything modern. A/C works great. Bathroom is awesome. Extra set of pillows/blanket provided. They were also accommodating of our request for early check in. The place is neat, clean and sparkling. Check in was super easy. Jacopo's co hosts are as good as him- they make you very comfortable. Loved our stay.
The location is very close to SMN train station- walking distance probably 3-5 mins. Duomo, Ponte Vecchio, Uffizi, Academia gallery all are close or the bus stops are close. Such a wonderful city and wonderful place to stay.
Keep up the great work, Jacopo! If I visit Firenze again, I will definitely check if his place is available. :-)