It is a fantastic apartment, well equipped and clean. It is easy to walk to all sides of the city. Attention if you have heavy suitcases, are two floors of stairs to get in the apartment so be prepared .
Natascha gave us all the tips for picking up the apartment keys and has several restaurant tips on the apartment counter as well.
For us the only problem was it’s no allowed leave your luggage in the apartment after check out to enjoy the rest of the day in the city (since check out is at 11AM) so we spent €50 more than planned just to leave the bags in the locker of the train station and enjoy Florence a bit more.
But I really recommend the apartment!