I stayed here for 7 weeks; while attending a workshop at the Florence Academy of Art, it is only a few minutes walk to the Academy, so a great location if you are going there. The photos of the apartment are very accurate, it's quite spacious and has a lot of light and balconies on all sides, with great views, so it's really a lovely place. I felt very at home there. It has everything you need - bedlinens, hair dryer, towels, washer, dishes, dishwasher, coffee maker, etc.
As others posted, you will need to buy supplies such as soap, trash bags, paper towels, etc. There are 2 grocery stores both a 5 minute walk. One is larger Esselunga and has just about everything you can imagine; the other is Conad City and is smaller and easier to get in & out quick. Near the apartment are several small cafe's for breakfast/lunch; there's a great pasticceria and gelato shop. There are a couple bar restaurants as well.
The bus stop is around the corner and can take about 20-30 minutes to get to the city center, depending on where you are going. You do need to buy the bus ticket in advance - you can buy it at the Tobacco Shop around the corner on Via Arentina (I believe it's closed all or part of Sunday). I took the bus quite a bit and got pretty familiar with it and after learning my way around a bit, i found it pretty easy. Most of the main sites you can get to without needing to change buses; you may have a 5-10 minute walk depending on where you're going though. If you need to take a taxi somewhere, there isn't a taxi stand near the apartment but you can call for a taxi or use the Ittaxi app, which worked quite well.
Paola is a wonderful person and a great host; I felt immediately welcomed and at home. She is incredibly responsive, usually within 5 minutes. I had a few questions come up and a couple minor issues with how to use some of the appliances. She ensured that all my questions were answered and everything was working; and even one night didn't hesitate to come over when I was having trouble figuring out how to use the washing machine. She was also very helpful to me in learning my way around and how to get to the bus, grocery stores, etc. I can't say enough, she was great and I would absolutely stay there again. Thank you Paola, I had a wonderful experience!