We stayed in this apartment recently on Sept 2015 on our 4days trip in Florence. We met Nicoletta at the apartment as promise and it was easier to get the apartment by Bus No. 14A from the main train station. Nicoletta show us around the apartment and it was nice to stay on the ground floor for a change after so many stairs up in the other host. She also gave us good recommendations on where to go and eat around the area.
The apartment is beautiful as the photos. The upper part your room and bathroom. I did saw, that she also put effort for children area in the living room for those with family staying at her apartment. Opposite the apartment is a supermarket, at the corner of the building, is the Main Street where the local will hangout and have dinner so you won't have to worry of finding local foods or pubs. The street will be alive till late night. Generally, Florence is the safe place stay.
The duomo is just about 10mins walk.. The accademia roughly about the same... So it is pretty close to the main attraction. If you travel often by bus, just bought the tickets earlier at any tabbachi and keep it to be used later. We were lucky on our 2nd day when we have to take the bus in early morning, we managed to buy a ticket the day before, there was an inspection and there are a bunch of tourist get fine for not having a ticket.
I would recommend the apartment for a couple and family of four.
Thanks Nicolleta for the lovely home.