We loved our stay at Alfredo's place. Alfredo himself, Mauruzio and Daniella were perfect hosts - easy to reach, nice to talk. They were very helpful.
The location is just great - in the historical center, for those who's going to rent a car - an underground parking 30 steps away from the apartment, right in front of the tower. We payed 100 euros for 3 days, which is not expensive.
A lot of useful places such as pharmacy, shops with fruits and vegetables, souvenirs, restaurants around, and very close to the jewelry market.
If I ever go again to Florence, and I definitely will, I will come back to Alfredo's Tower)