My wife and I stayed at Barbara's "La Divina Dimora" for four nights. What a wonderful place! We've stayed at lots of Airbnbs and this one was top-notch! It was spotlessly neat and clean. The apartment was recently updated with modern and sleek styling. Air conditioning was wonderful.
Since we hadn't been to Florence before, our host sat with us for half an hour marking out everything of interest on the street map. That was a big help!
There are two flights of stairs to walk up but...that's Florence.
The apartment couldn't be better. You can't go wrong with this place.