Okay...first the good. It is as central as you can possibly get in Florence. It was very hot during our stay and her Air Conditioning worked perfectly. The wifi was easy and she had printed up wifi access codes on small strips of paper - very smart. Other hosts should copy her.
The downside - no view what so ever. You didn't even want to open the blinds because the view is awful. Low cielings and closed blinds made it feel like a dungeon. There was only artificial light. The kitchen is just a hot plate. I would not even call it a kitchen. It also smelled a bit when you first entered. We kept the door closed and it was not and issue for the rest of the apartment. The shower door only goes half way. I saw this before in Europe, but that was almost two decades ago. Shower curtian or a full shower door would be a great improvement. Otherwise, water will soak the floor. Now...I wrote a few downsides, but if you are on a budget and the things I mentioned won't bother you....then book this place. It is right in the center of everything.
Good luck and good travels.