My wife and I stayed in the suite at Francesco's B&B White. The room was exceptionally clean and with a nice modern bathroom. Both Francesco and Francesca seemed genuinely interested in helping their guests to have as good a stay as possible. Francesca was particularly kind and helpful in recommending places to go and where to eat during our stay.
Note that though there is free parking on the street near the B&B, it can be quite difficult to find a space during the middle of the day. The neighborhood is an easy walk to anywhere of interest for the tourist going to the central part of Palermo, and though we felt safe at the B&B, the neighborhood seemed somewhat sketchy at night. All said, this is a good low-cost alternative to the more expensive hotels in Palermo.
Note that a washer is advertised as one of the amenities at this property but, in fact, there is no clothes washer for guest use.