The BEST place to stay in Florence. Leonardo was a wonderful host, and his apartment exceeded our expectations. He responds quickly to messages, and answered all of our questions. The air condiditioning (!!) was amazing and wifi was easy to manage. Leonardo has a binder that has all information for the apartment (how to use air conditioning, wifi, washer, recommendations for eating, etc). Bathroom/shower was very clean. Our arrival time changed slightly and he was very flexible and helped us settle in. He also showed us exactly how to use the keys, which was very helpful as we have had trouble with other places and keys. The apartment is on the top (4th) floor but the steps are not full flights so it isn't much of a climb at all. We had many bags and had no trouble getting our things into the apartment. The porch (fan included) was perfect for breakfast and evenings; it had a beautiful view of neighboring rooftops.
Another perk is that you can walk basically everywhere. We never went anywhere that was more than a 15 minute walk, and the Duomo, restaurants, and river are all 5-10 minute walk on beautiful streets. The train station is very close (5 min walk) so carrying luggage was never a problem.
We will definitely be back to this apartment. Thank you Leonardo!