First and foremost, the hosts are very warm and helpful. Our stay was made very comfortable.
the location is ideal - few minutes from the railway station, with a restaurant and a superstore right below the apartment, to satisfy your food needs. it's also just a few minutes away from the major attractions - Duomo, Accademia, etc.
Remember to take local tips from the hosts, and in your to-visit list, make sure you go to Galileo museum and Eduardo icecream :)