My husband and I stayed at the Florence apartment for 3 days.
Tarcisio is very attentive and kind, he was in touch with us as soon as we booked it and replied to my emails very quickly. He also let us check in earlier, and gave us a place to put our bags which he then carried to the apartment for us (one of our suitcases was very heavy!). The apartment is very well equipped, very nicely decorated and the bed is very comfortable. It was very nice to have the washing machine to do laundry and he keeps laundry detergent there so you don't have to buy it (keep in mind you will have to air dry, no drier which was ok with us). It was also great to have the kitchen, as we had been in Italy for a couple of weeks and we needed a break from restaurants. The walk from the train station is very easy, maybe 15 min walk and close to most attractions. You can walk to everything. There is a grocery store about 3 blocks or so from there. While is away from all the busy touristy areas, all windows face noisy streets so if you are a light sleeper you may have trouble. I am a light sleeper myself, and I was OK for the most part with some trouble falling sleep but ok, but keep in mind I was going to bed by midnight and getting up early. If you are not worried about some noise I am sure you would be perfectly fine.
Lastly, the one thing that we found unfortunate was the cigarette smell. It was very very very strong, to the point that the laundry we air dried inside the apartment had cigarette smell and we don't smoke. It seemed like the guest before us smoked and so does Tarcisio. So if you don't smoke, this may be an issue. Overall the house was very clean, we just found the kitchen area and kitchen utensils to be a little on the dirty side.
I would recommend this place if you are ok with the last couple of items. And I certainly recommend Tarcisio as a kind, trust worthy landlord.