Leon's apartment is in an excellent location, very well positioned at the quieter end of a street that will lead you to most of the main attractions in Florence.
There are good restaurants nearby including the fantastic Tito's (maybe the best steak I've ever tasted!) and a very short walk to the Piazza of San Marco will lead you to some good little coffee and cake stop-offs.
The apartment itself is fairly basic, but it is clean and comfortable and there is plenty of space. The apartment building is reasonably quiet and we really weren't bothered by traffic noise at all.
The only improvement I could suggest would be the inclusion of a guest manual to work out what to do with the rubbish when your bin fills up or to contain the various users manuals for the cooker etc. A list of recommended local eateries/walks/experiences would have been a nice touch too, but Leon did point us to Tito's when we reached out.
All in all, a very comfortable and relaxing stay in perhaps the most beautiful city on earth 👌