A cute apartment in a great location, with two amazing roof terraces. The views over the city are worth the say alone, and Federico is a very welcoming and helpful host.
The apartment was not heated while I was there, which made for a very cold stay, but I suppose most of the year that's not a problem in Florence. The top floor room with the roof terraces will probably be very warm or hot most of the time.
The apartment has everything you could wish for and is surrounded by great restaurants, bars and cafes. Plus Federico has great recommendations.
It was great being able to check in early at 1pm, although I was disappointed that I had to pay 10 euros for it. Surely, opening the door early doesn't cost extra? Also, beware that the apartment is on the fourth floor without a lift (8 flights of stairs), so it is a bit of a climb.
Otherwise, a great place to stay.