Giovanni's place was perfect for our stay in Florence. Truly 5 out of 5. The position is perfect (close enough to city centre and attractions, but just away from these things a little so you could escape them when you wanted to). Great restaurants nearby.
The space had everything we needed for the stay.
It did not face the street, instead the internal courtyard of the building, so it was quiet and we were able to get a good night's sleep.
Keep in mind that if you have a car, there is a no-go zone (ZTL) for cars in this area and you should not enter the zone when it is "closed" during peak times of day otherwise you will pay a hefty fine to local authorities. If you can get around this part, the best place to park is "Garage Santa Trinita". It is just around the corner from Giovanni's place and rates are very reasonable (other places nearby charging three times as much). You don't need a car when staying at Giovanni's place because everything in Florence is walking distance from there. Leave the car at home and come to Florence some other way, I say!
Anyhow, apart from the parking challenge, Giovanni's place was great.
One small thing was the wheels on the sliding door on the bathroom were squeaky and need a good oil up. At night, if one of use went to the bathroom it was loud enough to wake the other person up. Even with this small matter, it is still a perfect 5 out of 5 and we will definitely stay here again next time we visit Florence (Giovanni has probably already fixed the wheels on the door already, considering how awesome he is).