We just stayed at Giulio's place. The view of the Duomo from the terrace was simply amazing, perfect for sitting back and enjoying with a bottle of Brunello. The bed was also really comfortable and the apartment clean. Very centrally located, it's literally out the door and 50 meters to the Duomo. Yet somehow it still felt secluded enough as it's off a side street.
Luca was there to meet us for check in. He was extremely helpful in showing us how to maximize our time in Florence, avoid the tourist traps, and introduced us to some amazing restaurants and places with breathtaking views. I highly recommend this place and if I could book a trip again tomorrow, I would try to find this one first.