The host and her family are really nice and welcoming. Vanna even had prepared a map with several points of interest marked, as well as brochures for basically everything which could be of interest for a tourist.
The location of the house is not too far from the city center - we didn't bother with buying public transportation cards, because everything was within walking distance. The room was very charming, lots of character and beautifully decorated, really in a unison with the unique feel of Florence. As the description mentions, there's no designated kitchen for the visitors, but the hosts have set up a cute little corner right outside of the room with everything you need to prepare a cup of coffee or tea before diving into everything the city has to offer.
Everything was perfect, the only thing we regret is that we couldn't stay longer.