We were welcomed by Paolo's son, Nicola. He was very kind and spent some time giving us tips in a map he provided along with a lovely wine, which was fantastic!
The flat is really nice and gives an authentic taste and feeling of living like a local. Very spacious and tidy with an artistic decoration. Everything worked really well, such as the air conditioning and shower. Just watch out the toilet's door height (if you have more than 5'10'', careful with your head).
There is no room service, so you have to buy items such as extra toilet paper, and you will have to clean the litter before leaving, but it was no big problem from our side.
Overall, we loved the experience, privacy and kindness of Nicola in helping us. We will definitely come back there if we return to Florence!