Overall everything is good. The apartment is easy to access, there is a vintage elevator which is fun to use. WonderfulItaly really helped out a lot and gave some suggestions what to see in Palermo, also included some tours. The street noise is not bad at all if the windows are closed. The location is good as everything can be reached on foot. It is really worth to stay here for the true experience in Palermo!
Only a few nice-to-have things are missing in the apartment: some detergents for the washing machine, knife sharpener (so it would be possible to cut a tomato), etc.