Gianna is an amazing host, gave us tips on how to get to places, what to see, supermarkets, laundry, etc. She was also super detailed when asking for our breakfast preferences (delicious and extremely punctual every every day, even when we had to wake very early).
The room is spacious with a double bed, and a "mezzanine" with a single bed and the bathroom (bit of downside depending on your conditions). It also contained an amazing little library with art books, suspense, romance, etc.
The location is good, it takes a ~10 minute walk from Santa Maria del Fiore, so it is a bit away from the noise of the city center, but also a bit far from restaurant choices. Street can be a bit noisy at times too, but nothing egregious.
I've docked a few points from my review, because we were without hot water during our entire stay due to a problem with the water system, that was out of the hosts hands to resolve, but it soured our experience a bit. Regardless, Gianna was graceful when dealing with this issue and I thank her for that.