Settignano seems nice but we didn't have a chance to explore the area as we moved out after 1 night though we booked 4 nights. The water heater seemed to run out of hot water after one person has showered, and the heating in the room didn't seem to be working well. (We had stayed in the salzkammergut region in Austria just 2 nights ago - supposedly colder - and the apartment was fine for us.) So the room was too cold for us.
The room and bathroom are really small. No space to walk if you open 2 luggages. But fine if you just want to sleep.
We missed a bus and had to wait 40mins for the bus at night to reach the place and the duration of the bus ride to town seems to be around 30mins rather than 20mins. (Or maybe we just didn't have the luck with buses.)
Seems that "Luca and friends" are the managers of the apartment which is owned by someone else? Not clear to us, but maybe that doesn't matter.