We stayed in Chiara's apartment for 4 Nights. The apartment itself is nice and clean. Location is good - pretty near to the center of Florence (appr. 5 minutes to the Duomo by foot)
We were warmly welcomed by Chiara and she gave us a lot of tips - what to do, where to eat etc. (the opportunities are endless).
Booking, confirming details, check in/out - everything was uncomplicated
Please be aware that the apartment is not big - especially bathroom and kitchen are very small (so I would not really recommend it for more than 2 people )
We did not mind that much because we had not planned to cook a lot - and also how much time do you spend in the apartment anyway.
All in all we we had a really nice stay.