This was one of the best vacation rental experiences we've had. The communication was fantastic and the apartment and its location can't be beat. The apartment is very well equipped--you feel like it's your own little pied-a-terre in Florence. Lorenzo was incredibly responsive.
My only caution would be for very tall guests. There are a couple of beams in the kitchen and loft areas that were not a problem for me at 6' but might require you to duck if you're 6'2" or more. Very high ceilings in the living and other areas though.
Very, very highly recommended!