Bed: very comfortable and perfect size. My husband is 6'3" (1.92cm), and he slept well.
Noise: very quiet. The apartment is inside of a building complex sheltered from the street, so don't hear anything from the street.
Location: five minutes from the train station and seven from the Santa Maria Novella. There's a small coffee bar also just a block away.
We recommend this place. It is a big place and very comfy. It is a good deal to stay here.