Our stay was fine. There was a bit of a miscommunication with Clara about check in, but it worked out okay. It was unseasonably warm in Florence while we were there (80 degrees Fahrenheit), so I asked Clara how to use the AC if necessary. She was extremely reluctant to do so and gave me a lecture about how Italians don’t use AC, which was frustrating.
Pros: the apartment is unique and spacious; the bed is comfortable.
Cons: there was no hot water our last day; the bathroom had a sewage/sulfur smell at times; there are study abroad students living in the building who were very loud at night; the apartment is very dark; the instructions for opening the various gates into the apartment are complicated and it would be easy to get locked out.