Location is about 15 minutes of walking west of the historical center. Very manageable walk. Free public parking right in front of the apartment. No trouble getting a spot. Norman Palace is 5 minutes, Palermo Cathedral 10 minutes. Outside of ZTL. Frequently has scooters in front on sidewalk.
Apartment itself is very nice. Water pressure in the shower is like a fire hose! However, if you are over 1.80m tall, one of the two shower heads I'd going to be in the way. Not a big deal. Well stocked for coffee. Bed and pillows are comfortable. There are openings at the top of each bedroom door, so there is additional light from outside and slightly increased noise.
There is some sort of scooter mechanic next door that opens his shop around 830AM, which can be loud. But why be in bed when you can be out seeing the city?
Flavio was a great host. Meet me at our agree upon checkin time. Showed me the apartment and a map of the city. Very well spoken and fluent in English.
Overall 9.25 out of 10 for me. I would stay here again.