Excellent place right in the centre of Palermo. Comfortable renovated flat with great view of a large courtyard. Kitchen/living room (with fold out bed) and bedroom, both have a window that opens to the courtyard. Bathroom is good. Wifi is great. We visited in early march, at certain hours we needed some heating in the flat; there is central heating and it was really excellent and very fast.
Although it's in the centre, it's on a quiet street where we never felt unsafe. Very close is Piazza Sant'Onofro with a great trattoria (Pane e Alivi) and pizzeria (Frida).
Host Claudio was very friendly and available for all sorts of advise.
Would definitely recommend staying here.