Francesco is a great host - very communicative, and his parents were so sweet. I wholeheartedly recommend this apartment. Five quick selling points as you skim reviews:
1. Ground floor - no climbing stairs after you get home from walking all over Florence.
2. Beds were very comfortable.
3. Close to restaurants, bus lines, and a nice park but it's not in the middle of the loud fray. Florence is so walkable anyway.
4. They have thought of a lot of details. Need a European adapter? I found one in a drawer. I just kept thinking, "Oh, this was thoughtful!" as I went about the space.
5. The orientation of the apartment, and its ground floor location means it stays cooler than other apartments (even with A/C).