I and my wife spent here six days around the New Year of 2017. It is a good 'nest', very close (about 5 min of walking) to the historical center of Florence. About 15-20 min on foot from the railway station. The appartment is on the first floor (one, but quite a steep, staircase from the ground level). It is absolutely quiet as to the noises from the street. However, voices and noises from neighboring appartments or the appartment above are sometimes well heard; in our case, most of the days the appartment above seemed to be empty, so it was not a problem for us at all.
The appartment is not big; but is quite comfortable for 2 persons. The kitchen is well equipped (maybe a toaster would be a good addition); preparing food is easy and comfortable. Bathroom is small, but everything is in place as stated and works well. The heating is controlled by a timer program; in the mornings and in the evenings it is warm enough in the room and in the kitchen. In the night it was cooler; but we normally like it, so we even did not make use of the warmest of the blankets provided. With it, it should be more than enough for everybody.
Summarizing, I would recommend this appartment as a base for the guests of Florence. Ideal for a couple. For several days, you may feel like you really live in Florence .