Naike's apartment was perfect for me and my two roommates visiting Florence for the weekend. The rental units are private rooms, but the room was spacious and more than adequate for the three of us. The apartment was very clean.
It is about a 25-minute walk to Santa Maria Novella train station, and about a 35-minute walk to the city center. There are bus stops located nearby, however, the buses aren't always reliable in the city.
I recommend Naike's place to small groups visiting Florence for a weekend. It is very clean, affordable, and she provides you with great information on the city.