Overall, a good stay in Florence at Max's flat. The communication and check-in was seamless. The flat itself is neat with it's dual lofts.
Only complaints about our stay was that the front door to the building was broken during our stay and would not shut, so the stairwell up to the flat's door was accessible to anyone off the street. We didn't experience any problems, but it was unsettling. I'm sure that will be fixed soon. Noise from the street and nearby construction work carried into the building was a bit annoying early in the morning, but nothing earplugs couldn't fix.
Thanks to Max for the hospitality.