The apartment is really lovely and has all the amenities we could hope for, including all the kitchenware needed to cook proper meals in the well-equipped kitchen. It was also really clean and really nicely decorated, immediately feeling very cozy. I can't really think of anything to complain about - it was excellent value for money.
The place is located about a 15-20 min walk from the central Firenze. The neighborhood seemed very nice and peaceful, and we did not see any tourists there, so it's really nice if you prefer staying in less crowded areas. There is a bus stop right next to the apartment, and it's also very close to the Campo di Marte train station, where you can take a local train to the main train station S. M. Novella (7min / 1,50€ per person in Oct 2017).
Maria was a great host and she replied to all our messages very quickly.