Domenico is a great host. He always replies promptly if you reach out, and he met us at the apartment (and even helped us up the few flights of stairs with a heavy bag) to make sure not only that we got in but that he could help point us to major points of interest on the map or answer any questions.
The apartment is very nice; very modern and with thoughtful attention to detail (some of the direct outlets in the bedroom support U.S. plugs...no adapter needed...or can accept USB directly). There is a washer (and dryer! and iron!) available to use and a phone provided so that you can easily dial locally, if needed. The pictures are quite accurate and reflective of what a nice offering this is, and we would both stay again if we visit Florence and recommend to everyone.
The location is central to everything and easily walkable.