We left Lucas's room two nights early because we found the place was not suited to our needs. The 20 minute bus ride into Florence was the main issue, as the buses are not air conditioned (regardless of what you hear) so we got into Florence covered in sweat each day. Also, the bus ends at San Marco, which is still a significant walk from most restaurants and attractions.
We did not feel see the charm of Settignano as the other reviewers have stated. The town has a busy road running through it (on which this apartment is located) and is frequently busy from very early in the morning. Being on the ground floor, this was an issue each morning. The restaurants are definitely "local" oriented, so much so that my wife and I did not feel comfortable or welcome.
Lastly, the Airbnb Verified photos of the room make it seem bigger than it is, and quieter than it is. The exterior photos only show a footpath and not the main road. The interior photos highlight the hallway to the room, which is not any more a part of the room as a stairway is to an apartment. To be fair to Luca, all of the information he provides is accurate, but the romanticized reviews of this
small room from airbnb users do not provide an accurate picture.
If you are on a tight budget, and don't mind what I've explained, then this would be a good place to stay. Luca is a reliable host who accommodated a late check-in. The room was very small but clean, and relatively cool considering the heat of Florence in the summer.