Michelangelo was an amazing host and very helpful with tons of great recommendations, maps, and books on hand. The location is killer with good restaurants just a few doors away, and many top sights (Duomo, David, Medici Palace, other amazing churches) are only blocks away.
Watch your head if you are taller than 5'8", as this is on the top floor with angled low ceilings where you have to duck often.
What would make this rental a 5-star apartment: The bed was nice, but the pillows were not that great, and there is no storage or shelves in the bathroom and no shelves in the shower, but we made it work. We were also only given 2 rolls of toilet paper for 4 nights, and ran out and had to go shopping for more, which was annoying. I'd rather be enjoying the sights in Firenze!