First the location: You can't possibly be in a better location. We didn't have a lot of time in Florence, and the location was perfect to all the key highlights of the city.
Hospitality: We were an hour late for checking in, and we felt bad about it (took us a little extra time to figure out how to get to the apartment as no taxi service was available at the time we arrived). In reality, it is a short walk from the train station to the apartment so we probably could have walked it faster. Still, we ended up keeping the apartment manager waiting for an hour until we arrived and she was incredibly graceful and still helped familiarize ourselves with the apartment. We were particularly grateful to the help in getting transfers to the train station on our way out, and appreciated her recommendation to all the local gems. We texted a number of times and we received responses within minutes!
The apartment: It's on the fourth floor, and going up and down multiple times a day is a bit of a drag. If you have an elderly person with mobility issues, this is not the right apartment for you. The decor is outdated, and that was a little disappointing, but overall functional.