Located just far enough away from the bustle of the tourist spots to be peaceful but close enough to be very walkable to the Duomo, Santa Croce, Accademia, San Marco, and especially Sant'Ambrogio for the outdoor market. We stayed for a month and walked everywhere in the city.
The apartment itself is beautiful, with lots of light and old world charm. This feels like a former (or current) private home that was left untouched and provided as a rental. Three tall stories require a walk up stone steps (no elevator) but the views across the rooftops and into the courtyard are lovely. Staying here helps you feel immersed in the city rather than being a tourist.
Nice features include custom stone floor in the main area, full kitchen, beautiful cabinets and a wardrobe in the upstairs loft. Small balcony is better for hanging laundry than having breakfast. The main drawback is that some of the furnishings are a bit lived-in and could use replacing soon. Overall this was not problematic during our stay, it just felt like housesitting for a grandmother and using her old-school gas oven, iron and ironing board, cookware, dishes, and cabinets.
The property management staff were friendly, very attentive and helpful. The experience was more like being a tenant than staying at a hotel. For example, we had to schedule and wait for several days for service when our router and television needed replacing due to a lightning strike. Understandable, just expect this rather than instantaneous gratification.
The folder with information about the neighborhood was very informative, and we visited Sant'Ambrogio Market several times per week for excellent produce.
If you want to feel like you truly live in the city, this is a good option for a longer stay in beautiful Firenze.