Overall, we had a good stay in Martina's place. The place was huge, great value for money and Martina was a good host.
Prior to arriving we messaged concerned after reading recent reviews about cockroaches. Martina reassured us that action was being taken to resolve this, however, would be difficult to resolve due to the city and weather. Although it was clear efforts had been made, there were still some cockroaches around the house which inevitably made us feel a bit uneasy, but didn't impact the stay too much. There is wider issue across Palermo of rubbish on the streets, so I wouldn't be surprised if it is wider issue, not unique to this apartment.
I'd recommend this place in particular if you are planning to use Palermo as a base to travel about as not only is it a short walk to the terminal, but there is car parking available which is like goldust in other areas in the city!