In short :
Great host, new clean silent apartment, well located near the center of Palermo.
In more detail :
Giovanni nicely welcomed us at the apartment and did the introduction to how everything works. He also provided us with a, being it an outdated, map of Palermo and highlighted all the important sightseeing spots on there. He also suggested a restaurant but sadly we did not have any time to visit it.
For parking there's 2 options: 1) free parking in the streets around the apartment (make sure you know how parallel park) and 2) in the paid parking garage across of the apartment.
The apartment was easily reachable by car since it is not in the middle of the center, but just outside of it. Meaning that driving towards it was a bit easier. But the sightseeing spots were still walkable by foot. However, I would recommend to use the electric steps all across Palermo. Way faster and thus a time to cool down while you "fly" across Palermo. The electric steps are very cheap to use (€1 + €0,15 p/min) and if it's hot it is a major improvement and definitely worth the price.
The apartment itself was very clean and modern equipped, and above all nice and quiet. There was only the 2 of us so enough cutlery as well, this was limited to approx 2 uses though before we had to do the dishes.
The washmachine worked well, the airco worked well. Just everything you need is there.
The bed was a bit hard so we took some extra pillows to put under the sheets. It is nice that these were available.
To reach the apartment you'll have to climb 2 stairs since it is located at the second floor. There is an elevator but Giovanni told us not to use it since it is a really old building and the elevator did not close completely.
The door to the apartment is very thick and has a double lock, which made us feel more safe.
Giovanni responded quickly to all our questions and if there were some problems he tried to be there to help as quickly as possible.