I traveled with my mom to Europe and we stayed for two nights in Roberto's loft apartment.
Structure and Amenities: The apartment is located on the second floor of an apartment building with approximately 4 other units. It's a loft with a small kitchen and small bathroom located behind two doors. When the doors are closed, they appear like closets; very discrete. There is AC, TV, hair dryer, coffee press, heated clothes drying rack, standing closet on loft space, and small fridge. It was comfortable for two people, would be comfortable for 3, and may be a little more cramped with 4+ people considering luggage.
Location: The apartment is located on a side street off the main highway. It is a quiet area, and even more quiet given that it is on the second floor. It is very close to a super market and pharmacy for needed purchases. It is about 15 minutes walk to central Florence where you will likely do your main sight seeing. It is a 15 min walk to the train station, and a short drive to/from the airport.
Pros/Cons: This is a beautiful apartment close enough to central Florence yet far enough away to escape the hustle of tourism. The loft allowed for personal privacy and everything in the unit was functional. The unit can sometimes get warm, especially the loft space above since heat rises. The AC was much needed. Opening the window above the loft is very helpful to allow heat to escape. The kitchen and shower are a bit small, fitting no more than one person at a time, however, that's how many units are in Italy. It's enough space to tend to basic needs.
Overall, it's a great apartment with supportive hosts, good amenities and place that can feel like home.