This apartment was lovely, and Michele was a super host. Apartment is located 5 minutes away from the Duomo on a relatively quiet street. It is 3 floors above street level (there's an elevator), and towards the end of the hallway (which keeps the noise at a minimum). Has a big den and kitchen table, with the bedroom and bathroom located in the loft upstairs. The stairs up to the loft are very small and quite steep, and the shower and toilet are VERY tiny... but this is to be expected in most older apartments in Florence. There is no air conditioning in this apartment, so keep this in mind. It was 36oC in Florence when we were there, but Michele placed two fans in the apartment (one upstairs and one downstairs), which kept us cooler at night. He also put a mosquito net up on the window so that we could keep the window open and let the cooler air in at night. We used the kitchen (has a good stove, microwave and fridge) to make our breakfasts and lunches.
Would definitely recommend this apartment, and would stay again. However, keep in mind that it will be hot if you stay in the middle of summer, and the loft may make accessibility an issue for some people. Michele owns another apartment in the same building... not sure what it looks like, but would probably be nice too!