Loved staying here! My brother and I have stayed at a handful of different airbnb accommodations throughout our trip, and this apartment was definitely one of the nicest.
Very clean and organized, clear instructions on anything we could have had questions about, and there were even printed out itineraries for us to follow and a map! It was also very nice having a few coffee pods, sugar, and cooking essentials in the place already, very nice when you're only staying for a few days. Great location as well! All the big attractions of Florence are within a short walk, and my favourite (the Duomo) is down the street!
A small note is that my brother experienced a few issues with the wifi. I however didn't have any issues, and I was streaming content at high quality throughout our stay. Maybe just keep an eye out for this if you have a job or something you need to do online that requires very fast internet.
Overall a fantastic experience! We both recommend staying here wholeheartedly :D