Andrea has arranged someone to receive us at the entrance of the apartment. Apartment is 2-3mins walk, just across the Firenze SMN station. Just beside the apartment, you could find McDonalds, McCafe, Burger King and just round the corner you find a supermarket as well as a Chinese restaurant serving delicious Chinese food. It is a 5 minutes walk to San Lorenzo Market as well as the leather market where you can get many leather goods.
Apartment feels safe as there is a doorman and main entrance is locked when doorman leaves for the day (I think). Apartment is big, very clean, exactly per the photos shown. Bed is comfortable. Kitchen is well equipped with utensils, oven, sandwich maker, electric kettle etc. Perfect for our family of 4.
Highly recommend to anyone who is visiting Florence. I will stay at Andrea's apartment again if I were to visit Florence again.