Rosy's apartment is nice, clean, comfortable and located in a commutable distance from the Florence's center. We liked our stay there very much.
We appreciated Rosy's prompt communication before and during our stay and also the flexibility with accessing procedure.
Easy parking in a closed garden. Small backyard with a table and chairs to eat outside.
What really made us crazy were the mosquitos at night - so be ready for this and do not open the balcony door at night and/or have some sort of mosquito repellent ready.
Regarding the bus no. 27 - the bus stop is at a 5min walking distance. Then you have to change for tram at station Nenni-Torregalli. However we had problem with the tickets - there's nowhere to buy them in the vicinity of the bus stop. So we went without them (not recommended!) and bought them only at the tram station from the ticket automat. Also the bus is not very comfortable and reliable as the to following the timetable. So it is better to drive with a car to P+R at Nenni-Torregalli (10 minutes driving) and continue by tram from there to the city center.