Sabrina's apartment is a gem in a great location in Florence - central to all the sites you want to see! We stayed in Florence for three nights and never had to use public transportation as everything we wanted to see was within walking distances from the apartment. The check-in process was seamless and Sabrina was super flexible in accommodating us as we ended up taking an earlier train from Bologna - she let us drop off our luggage earlier as she was preparing the apartment, which we appreciated so much as we could walk around and grab lunch without lugging our heavy bags around. The apartment itself is wonderfully spacious and clean, with a full kitchen and dining table for four as well as a comfy couch to relax or watch TV. One thing to keep in mind - the neighbors upstairs seem to have small children who run around and play a lot - completely out of Sabrina's control of course, and we did not mind since we are early risers :) - just something to keep in mind for those who like to sleep in!
Sabrina and her son Alessio were communicative and responsive, from arranging the check-in process to answering our questions via Airbnb messaging whenever. Would highly recommend their apartment to anyone who is looking to stay in Florence!