10/10!!
This is THE place to stay if you are visiting Florence. Upon arrival Cosimo greeted my father and I right outside the apartment. Not only did he give us a small walk through of everything we needed to know about the apartment, he then sat down with us and went through the entire city, and gave us an interactive map for our entire stay.
The apartment was clean and beautiful. Very close to the train station, which is a huge plus!
Also, USE THE BIKES!! They are a must. Unless you like to walk 10+ miles a day, the bikes will make it easier and more enjoyable to explore the city. Absolutely wonderful stay!!