This flat is superb! We went on a road trip with two couples and this place is perfect! The place is quiet, yet quite close to the city center (just a 15-minute scenic walk along the river until all the major sights in Florence).
Each couple had their own room and bathroom and the third "common" room with the cozy sofa and little kitchen was a great place to gather after a long day of exploring and enjoying.
The parking spot is very conveniently located in a closed-off yard right in front of the entrance and each flat has its own spot, so you can be sure it is always waiting for you. Very safe and convenient. It´s an additional 10 Euro per day well spent if you are traveling in a car.
All in all: highly recommended, you get great value for the price! Thank you Piero for this amazing Florence experience!