My wife and I stayed in Claudio's apartment for a month and would happily stay there again. We highly recommend the apartment to anyone considering a visit to Palermo (which you should -- it is a wonderful city).
The apartment is well equipped with modern furniture. The clothes washer is new, and there is plenty of hot water from a large water heater.
We needed a couple of things that weren't already in the apartment, and Claudio quickly provided them for us.
Claudio was altogether a wonderful host. He was very helpful in giving us information about where to buy groceries and other things we needed over the first couple of weeks. He was also great about tips on where to visit in the city itself, plus places we could get to by bus, such as Mondello for the beach and hiking, and Monreale for the cathedral and the general interest of the town. Claudio also gave us great advice for other sightseeing in the province, but with the lockdown, that wasn't possible.
The apartment is very conveniently situated, just off both Via Roma and Via Vittorio Emmanuelle, two of the main shopping streets in Palermo. It is an easy walk to the long distance bus station, and the airport shuttle bus route is a few minutes from the apartment. It is also close to the sailing and fishing harbor -- we enjoyed walking down there in the mornings. You'll also find Via Maqueda within a few minutes; it's a fun walk with lots of boutiques and street life. Ballaro Market, a very lively place, is about 15 minutes from the apartment, and of course La Vucciria, a tiny but well-appointed market, is just steps from the apartment.
Altogether, Claudio's apartment is ideal for a long stay, and Claudio himself is a wonderful Airbnb host.