A+++ would highly recommend! We had a slight hiccup at check-in but Monika fixed everything. She was incredibly responsive to our needs and provided excellent service and local recommendations. I will confirm what other reviewers have said: all of the pictures in the listing are 100% accurate. This is a three level apartment in a medieval tower. It's stunning! We were very amused whenever we left the tower that people would stop and take pictures of the tower because it's a marvelous historic building. The location in Oltrarno is perfect. This is close to the Ponte Vecchio, and it's a quick walk right into the heart of Florence; however, it's still removed from the beaten path that the tourist population has thinned and you get a more local flavor (check out the highly rated Osteria Cinghale Bianco just a few steps away for delicious food). Big bonus: unlike some other places we stayed in Europe, the showers had great water pressure and hot water. The AC also worked very well with splits in each room. Full disclosures: we are US travelers, stayed in mid September, and we used 2 of the 3 bedrooms and bathrooms. There is a very small washer and dryer that was very different from what we have in the US. The dryer is a "heat pump" dryer that sucks water out of the clothes - you must empty the water reservoir that the dryer collects or your clothes will never dry.
This was an amazing experience and we will try to stay here again if we return to Florence.