A great apartment in a central location, description and pictures are accurate - Salvo is an excellent host - he was very quick to communicate and helpful with any questions or issues we raised. We had a problem with the wifi when we arrived and he contacted the provider and had it solved by the next day, allowed us to leave our luggage behind due to a late flight, and posted back my friends license after he left his wallet behind.
The apartment is very central to the main sites of Palermo - and as such is near some nice bars / restaurants which can be a little noisy in the evenings if this bothers you, but not unbearably so. The kitchen was well stocked (with croissants and milk provided which we unfortunately could not have due to dietary restrictions). There was some some superficial dust on radiators and a couple dishes we had to rewash but overall everything was clean.
Overall would recommend as a good central base to explore the city