I like Federico's apartment whic is fancy and classic Italia style. Its location is extremely good and just in the heart of Florence. You just need to have 5 ~ 10 mins walk, you could see the famous 
Cattedrale di Santa Maria del Fiore. Beside that, his apartment is very clean even in the shared bath room and for sure, Federico is kind and helpful with your problems.

I strongly recommand you will go there if you will travel to Florence.