Pros:
Great location within walking distance of everything.
Very well equipped kitchen.
Spacious bedroom with nice big window.
Very responsive to questions.
The one manager we met was very friendly.
Cons:
It seems to be in some kind of hostel and feels that way in some respects, lacks some cosiness.
It's a bit dark, just one outside window in the bedroom.
They rely on each tenant to wash their own dishes and empty the trash, in our case the previous ones didn't.
It's an old building and we had a shower leakage issue, but that's to be expected if you want to be in Central Florence.
Theres basically one parking option nearby which is pretty pricey (30+ euro a day).
Overall its pretty good value and comfortable, and the location is really great. I'd stay again.