The apartment is located perfectly, very close to the train station Santa Maria Novella and in direction Duomo.
The employee of the property management agency who came for the check-in was very friendly, showed us the apartment in all details, gave us information about places in the town etc., so he was very helpful.
The apartment is very nice, maybe in the evening/morning a little bit noisy for who is sensitive against traffic noise. Overall in my opinion a bit overpriced, but Florence is in general quite expensive.