This is my second stay at an apartment managed by Donatella, and it was truly fantastic. The reservations were easy and she communicates early on to ensure your arrival will be successful. This particular apartment is located in one of the busiest Piazza's in Florence, Piazza della Signoria. You walk downstairs and there are several restaurants and shops to choose from as well as a bank with ATM right outside of the building. You are steps away from the Palazzo Vecchio and Uffizi gallery. At night, there are often musical performers in the piazza so you can enjoy some of the ambiance of Florence - no major loud concerts, usually a guitar player or a singer, just creating a magical atmosphere. This was a 2 week trip and I have already booked a future trip in this same apartment. When we visit Florence, we like to use Florence as a hub and then take day trips to other cities or sometimes take a 2-day trip somewhere but keep our apartment rental in Florence so we can travel lighter and not carry all of our luggage.
The unit has A/C and heat as well as Wifi, and a washer to do some laundry. At night you may want to make sure you close the outer windows and inner windows as well to reduce the noise from the street below. Florence is a lively city and as such, there will be people out until all hours of the night. Personally I loved it and when I was ready for bed, I just shut everything completely to block any unwanted noise.
Donatella's apartments have the amenities you need such as towels, blow dryer, etc. and if there's anything you forgot, there are plenty of shops to find what you need.
I highly recommend this location (or one of her other properties) if you are looking for a fantastic stay in Florence.