This is the best property I’ve been at in my Italy trip and even in my history using Airbnb in different countries. Is really an awesome host and an awesome property. The check-in/out process is extremely simple and very well documented though. Never had to use the physical keys of the property even though I took them everywhere, as suggested. The location is spectacular: everything you need is close, local transportation everywhere, although we preferred to walk and that was 6 minutes or less to the closest bridge to the city downtown. But the alternatives are there for you to choose. San Frediano is beautiful and full of small places with very good food, wine and some of them music. A lot of locals go there!!
We strongly recommend this property for everyone visiting Florence.