Stayed for 10 days at Sergio's. A well organised and spacious apartment, we were gracefully welcomed by Sergio and his lovely wife. We were handed printed portfolios of all the good adresses near the apartment,and Sergio introduced the best places to visit in Palermo. It was very helpful we were able to do a lot of things. Throughout the stay, we stayed in touch with Sergio and he answers very fast.
NB: although it's a 5/5, please be aware that the rooms are close to the street and the apartment is not well isolated so it's very noisy.