Maria's place was beautifully furnished in a nice and quiet part of Florence. It takes 10-15 minute ride to the main attractions, which isn't very long. However planning the places you want to go to beforehand will help a lot in making your times worth.
She was very attentive with a lot of information provided, so do read up a little on Florence before you come! Or it might be too overwhelming.
This was definitely the best host I have met so far on Airbnb, and will not hesitate to come back yet again.