We had a wonderful time in Florence while staying at Luca apartment. Apartment was very clean and the loft was amazing accommodating one on my two teenagers. The location does not get better than this. 5 min walk to train station and just about the same to all major landmarks.
As all apartments in old twon the night can get a bit noisie however the main bedroom was well insulated. The apartment is on the fourth floor so that also helps.