We choosed this accommodation in Fiesole because it is very close (10 minutes to walk) to the Villa Viviani, where we celebrated the wedding of my brother and his wife. So it was perfect for us!
But if you want to visit the city Florence, I recommend you an accommodation which is in the city center and not outside in Fiesole because the bus connections between Fiesole and the city center is time-consuming.
Jony was very nice and trustworthy. The villa is clean and comfortable. Unfortunately the wifi is only in one part of the villa available (kitchen, living room and entrance). But for us it was okay.