My girlfriend and I had never been to Florence so we decided to gamble on a location for our stay, and it could not have worked out any better.
The Location: The apartment is located in the heart of Oltrarno which is located on the other side of the Arno (or as we soon found out, on the other side of the horribly crowded, touristy part of Florence, but still only a 10 minute walk away form all of the sites). This neighborhood is the equivalent of staying in Brooklyn instead of Manhattan. Incredible boutique shopping, local markets, and home to some of the best authentic restaurants in the city. If you want a real authentic Italian experience in Florence, this is the place to stay.
The Apartment: Looks exactly like the pictures, was extremely roomie, and the AC kept the place nice and cool during a brutally hot week during the summer. Patrizia (our host) was so awesome and accommodating, our flight was delayed 6 hours and she was still there to greet us at the door. We even accidentally locked ourselves out on the first day there and she came back within a couple of hours to let us back in. As a bonus, Patrizia had THE BEST (and hippest) recommendations for places to eat and see in the neighborhood. We're big foodies and her recommendations blew us away.
Definitely staying here again when we come back.