What a great place to stay. I brought my mother to Italy (along with my dad, wife and sisters) and she has a hard time walking too much so we wanted a place close to the city center. You couldn't find a better location in Florence than Fredrik's apartment. It is literally within a 2 or 3 minute walk to get to the Duomo. That alone made it worth the money.
But also it was clean, had plenty of rooms and bathrooms, a great common area and a washer. We were thrilled with it.