What we liked most of our stay is the incredible kindness of the hosts. Elena's husband spent some time with us at the check-in to show us the best spots in Florence (restaurants, museums etc.) and even gave us a map of all those places. The apartment itself was great : a full kitchen with everything you need to cook a nice meal. The hosts had left us many things such as coffee, pasta, olive oil, etc.
It's located in a very calm neighborhood but is still very close to the historical center ( less than 15mins of walk).
It is so far our best experience with airbnb and we are looking forward to come back to Elena's place during our next trip to Florence! Thanks to them again for their amazing hospitality.