All in all I can recommend this flat. Quite spacious, friendly communication, location is great, given you want to experience Palermo.
Be prepared that living in a lively area also means it's never really quiet. Furniture isn't what you would call luxury, but the daily rate isn't either. So that's ok, I guess.
It was fairly clean, except the kitchen. I made quite an effort to bring it to my standards, I hope my successors can value my work.