As a single traveler, this is quite literally the perfect living situation you could hope for. You've got your own private entrance area and your own private bathroom with an amazing view of Florence.
It's a straight 10 min walk on the street outside down to the Duomo, and 10 more mins on the same street to Ponte Vecchio. There's lots of restaurants and gelaterias on the street as well.
Beatrice was an excellent host, making sure that my check-in was as smooth as possible and providing lots of helpful suggestions about things to see and do in Florence. Overall I had a fantastic time in the city and a very pleasant stay here.
Really the only downside to this place is that you have to climb 90+ or so stairs to get to it every time because it's at the very top of a 4-story building with no elevator, but this shouldn't be a problem if you don't have too much luggage and are somewhat in shape.
Would highly suggest staying here for anyone traveling solo!