My husband, parents and I stayed at Luca's place for five days. It was really nice having two bathrooms and a close location to the city center. Luca was very helpful prior to us arriving and even helped us confirm a few reservations before our trip. One of our reservations didn't work out and Luca offered a great alternative ( I Raddi) which was excellent. They had a wonderful steak tartare that we all enjoyed.
This is a really nice place located a few blocks from the train station just off of Sta. Maria Novella square. When we arrived, Luca arranged to have a friend greet us at the train station and show us to the apartment. We were able to walk easily to the train station with our luggage.
Being at the Sta. Maria Novella square was nice especially since there was a gelato festival going on there when we were in town.
Overall, we would recommend this place to anyone saying in Florence; it was very comfortable. Very quiet and dark for sleeping even though it is in the heart of the city. Wifi was good and reliable. It is on the third floor though without an elevator. My husband lived in New York and had a five story walk up so we were fine but my parents had a harder time (68 steps counted by my mom).