Daniela has a very nice and neat place. My two kids enjoyed sleeping in the loft. Several bus stops are within walking distance. The 3 A/Cs in the house helped us keep cool in the hot weather.
Outstanding hospitality by Daniela and her son Alessandro so kudos to them.
Do run the A/C in the loft a bit earlier than needed since the hot air tends to go up and stay there.
The bathroom is small and the shower is very compact so expect a bit of a struggle there.
There is a Tabacchi on the opposite side of the road where you can buy bus tickets. It is more expensive to buy them on the bus.
At Firenze SMN, there is an ATAF counter at the tram station outside to buy bus/tram tickets.