A very comfortable flat, a bit old and small but very efficient. The sofa bed was really comfortable.
There is a direct bus (11) from S.M. Novella train station. And that is all the transport you will need, the flat is walking distance from the centre and the main sights.
Paolo was very helpful with tips for the area and Florence in general.
The flat is in an old building, you can hear the neighbors, but we were so tired after being out all day, so it did not bother us. It had all the amenities we needed.
The best part is that it is just outside the tourist traffic. We could have breakfast in the bakeries near by and feel the Italian atmosphere.
We had a great time and I can definitely recommend the place.