We loved staying at Maurizio's place in Florence. It is 15 minutes from the train station, but the area across the bridge is where the locals live so you feel like you are living in Florence when you are there. Many great restaurants close to his apartment. The apartment is just as seen in the pictures or even better. Maurizio is very friendly and will answer any questions you have.
There is a tourist tax that is 2,50 E a night per person which is expected upon leaving. He also has to take a picture of your passport so don't be surprised.
You should definitely book this place for your Florence trip if it is available.