Francesco's place is within a 20 or 25 minute walk to almost everything you might want to see in Florence. The air conditioning was powerful, which was wonderful after walking in the midday heat. Everything was clean and the room was nicer than many hotels I have stayed in. My request for an earlier-than-usual check-in was accommodated. This studio was an excellent value.
My main problem was it took some figuring out how to make coffee, as the Bosch induction cooktop and the Moka express machine e were unfamiliar to me and the instructions in the Bosch manual was not that clear. If you plan on making coffee or plan on cooking, you might ask the hosts to show you, in the beginning, how the cooktop and the coffee maker works. Once I got help from the host with the cooktop instructions, and watched a Youtube on the Moka express, I was able to make excellent coffee!
Also, if you go down the stairs instead of the elevator, you might want to use your phone's flashlight, as the stairs are not lit.
Overall, I highly recommend this place, and will let friends who plan to go to Florence about this place.