Matteo's apartment is perfectly central to many of the main Florence attractions. More importantly, Matteo was a wonderful host. We needed to drop our bags early and even with the later check-in he let us leave the bags so that we did not have to pay to store them or lug them all over town. Beyond that he was very easy to get ahold of and very helpful.
The apartment is fun, and spacious for a couple or a small family. The shower is best used as a hand-held, so keep that in mind, but no issues at all with water temperature or water pressure. The AC doesn't fully reach the lower bed, so for those who struggle with heat at night it might be warmer than preferred during the height of summer. Fall, winter, spring there wouldn't be any issue.
Ultimately, for a comfortable space, fantastic host, and envious location I would recommend this apartment.