The apartment is located centrally within a few minutes walk of all the major sights, and yet being just across the river serves as a nice sanctuary from the loud crowds of tourists that flock through Florence during the warmer months.
The apartment itself is very spacious, with a comfortable bed, tons of wardrobe space, and a high-pressure, hot water shower in the bathroom. It is furnished with a comfortable couch and dining table in the hall.
Bear in mind there is a decent amount of stairs to climb before you get to the elevator, and given it is a very old building, the elevator is designed to move very slowly. It is actually quicker to get to the floor walking down the stairs than taking the elevator, but is of course very useful in transporting luggage. Note that there is not a full kitchen, but there is a fridge/freezer/kettle/utensils should you wish to eat in - but there is no sink in the apartment itself. There is a shared washing machine in the common area that is readily accessible.
We had a couple minor issues (not sufficient toilet paper, and clogged shower drain), that were resolved quickly after we sent a message about them. The apartment is showing some minor signs of wear and tear (paint and scuff marks around the walls), but overall was clean and tidy.