overall, this house is deserved to be compared with 4.5/5stars hotels.
It is much better than 4star hotels in firenze.
Host was really kind and they were open to answer any kind of questions I asked to them.
I stayed at room D and it was superclean and its huge window makes cool air blowing into room.
kitchen was also very clean and whole area in this house was very quiet and clean. it feels like nobody lives in this town ..
distance ! to main part of city just takes 10-20min by walk so I didnt even use any kinds of public transportation. If you just cross any bridges along river and there are things to do mostly. This town seems like living in the middle of boston,US. so you can walk streets at nighttime without fear. much safer than staying at Rome!
summary
"pros : smooth communication/cozy and cleam room/quiet town/
"cons : many stairs to get your room in the building
I had best memorable days in florence
Cordially thanks to Daniele and Clara