I spent around a fortnight at Alessandro's Airnbnb and had the most excellent time! The location was ideal - only five minutes from the Duomo and other points of interest in the city centre. The flat itself contained everything one would need for a short holiday: a kitchen with all the essentials, a compact but functional bathroom, a very comfy bed and a wonderful, subterranean living room of sorts complete with two sofas.
And as for Alessandro himself, he has been a truly excellent host. He gave me his number when I first arrived and would respond to any questions I had within 5 minutes. He was also extremely accommodating and a proficient problem solver. For instance, though I arrived very late at night, Alessandro nevertheless took steps to ensure that I could access the flat with no problems. Likewise, when I had a minor mishap with the house key, he quickly got back to me with a spare whilst I worked on returning the original to him. And all of this with the upmost politeness and amiability!
So, all in all, a glowing review from me. If you're after a well located, well furnished, and tidy place to stay whilst in Florence then look no further!