Stello was kind enough to wait for us at the flat, despite delays in our flight and our trip in from the airport.
The flat is truly in the center of historical Palermo with most sites and many restaurants within walking distance. It's quite spacious and comfortable. The only real downside is some noise during the night from the nearby restaurants and bars, but even as a light sleeper i wasn't very bothered.
You're close to it all but still truly in a neighborhood, so enjoy!