Cinzia's was the second apartment that we stayed in in Florence and was a really choice. We hooked the part,net the night before and requested an early check in and an earlier bag drop so that we could coordinate with the check out time for the other apartment. Cinzia and her partner Michelle were incredibly accomodating on both counts, and the apartment itself was great.
It is very centrally located while still being in a more residential area so you get a better feel for Florence and cheaper food! It is about a 15 minute walk from the train station and the centre is only another 5 minutes from there. The apartment itself was well stocked with all essentials very clean. There is also a open air washing line which is great if you need to dry some laundry quickly. Overall I would definitely recommend Cinzia's apartment and would add that it is excellent value for money especially if you are travelling in a group