We loved the room. The location is exceptionally close to the Duomo. The place is very clean and well furnished. The owner even provided a safe place to store our backpack after checkout for the whole day.
One thing to be careful about: Florence's street numbering system. It can be very confusing at time when the same building has two street numbers on it.
I would come back to this room if I was to spend some more time in Florence in the future.