This is probably one of the hidden gems of Firenze. The stay was a lot better than expected and it's mainly due to the extra effort put in by Luciano. We have been to a lot of Airbnb-places all around the world and this is probably one of the best.
Luciano has prepared folders with tips on museums, restaurants and maps. For us travelling with children there were toys, childseat, baby bed etc which was both considerate. There is air condition, a very nice bathroom and a terrace with a view over the rooftops of Florence. We also arrived by car and Luciano has a good private (locked) parking space a bit from the apartment (he drove us there and back).
The apartment is a 20 minute walk from Ponte Vecchio but it's very close (<5 min) to bus stops that take you there in 3-4 stops for 1.5 EUR. If/When we go to Florens again this will probably be the first place we will look for.