Edoardo was very very nice and responsive. Because I came from another AirB&B apt I asked him for an early check in, and if it was ok, to leave the bags before checking in. He agreed and met me in the apartment at 11AM when the check in was supposed to be around 4PM (if I remember correctly).
Eventually I decided to leave the apartment early because of three main issues:
1. The restroom had a strong smell of chemicals so I had to sleep with the restroom closed, and open in for a few minutes in the morning before going to shower.
2. The only window it has was high and the apartment was dark and suffocating.
3. The walls were too thin and I got a loud neighbor.
Besides that, the apartment was in a very nice location, both central yet quiet and local. It is located near a great small and hidden center where local folks getting together to drink and eat. It has a great restaurant (it is called 4 leoni, order the Ossobuco!), and a very good bars and an ice-cream shop that always full of customers waiting outside.
With all the issues I have mentioned, please bear in mind that the price is relatively low for Florence. All in all, it is a valid place, not bad in terms of value for money.