Bottom line up front: We absolutely loved our stay at this AirBnB!
Location: For starters, this can't be beat. You are in the heart of old-town Florence and walking distance to literally everything. You're surrounded by great restaurants, the sights/museums, and plenty of stores. You won't find a better location.
Apartment: The apartment was clean, spacious, and truly felt like you were staying in an Italian villa as it was meant to be. The view from the window feels like you're staring at a Renaissance painting. There is A/C in both the living room and bedroom that is both extremely effective AND quiet. It was low-90s when we were there an the A/C was fantastic. The only negative of this place - and they are very upfront with it before you book - is that this apartment is located up 4 flights on uneven stairs. We knew that going into it and didn't have a problem, but if you're with older individuals it could be an issue.
Check-in: Max was super helpful and flexible with us regarding check-in, as we had an unfortunate train delay from Rome and had to drop bags before a reservation we held. He was able to have a colleague assist us with early check-in, and we are super appreciate of the efforts!
There are only a few small areas of improvement I'd suggest, such as providing a couple more towels, adding a WiFi extender to the bedroom (the WiFi does not reach), and possibly getting a new bed (it creaks and slumps towards the middle).
Overall, I could not recommend this place more for a true Firenze experience. Thank you Max!