The space is very large and beautiful. The bathroom was clean and the best bathroom we had of our 6 Airbnb's during our trip to Italy (good size and clean).
There was alot of supplies in the kitchen for cooking a meal. I reccomend buying local groceries in Florence's central market and then cooking one meal with the kitchen and supplies!
Florence is small so it was not a long walk to any location.
The breakfast provided was small wrapped pastries, fruit, supplies for making tea and coffee, as well as juice and milk and a bottled water (all already in the airBNB when you arrive).
Some small things to note, the AC is small compared to the size of the space so if you like it very cold, that may be difficult to achieve. That being said the AC is next to the bed upstairs so it was not difficult to fall asleep each night.
Final note, when we were there the owner had free postcards to use, 3 sets of keys (which is awesome) and when we had a problem we texted him and he came in 2 minutes (in the night!). Overall a very good airBNB, and again, the space is very impressive for the price.