Our stay at Angelo's apartment was perfect. We arrived quite late at night but the check-in process was very quick and it felt totally safe. The apartment is brand new, clean, and comfortable and with all the amenities you may need. It is very central, one minute to the vibrant (and very cheap!) market of Ballarò, and within walking distance to most tourist attractions in Palermo. Also, there are really nice restaurants around. The terrace is very cozy too, and although some nights there was music on the street, the rooms were totally silent and well insulated.
Angelo was super helpful and lovely, so if you are planning to visit Palermo, I would totally recommend choosing his apartment.