We have very much enjoyed our time in Nico's apartment, so much so that we extended our stay. The apartment is well suited to long term stays, with solid wifi, a comfortable bed (with blackout curtains in the bedroom), a nice shower, a good sized, functional kitchen, and a washing machine. The location is fantastic, next door to a good grocery store, with a large supermarket a few blocks down the street, and dozens of convenience stores nearby. The neighborhood is awesome, there are many great restaurants and bars within a 5-10 minute walk, and if you walk a little further you are in the heart of Palermo, with hundreds of bars and restaurants. Two train stations within a 10 minute walk make it easy to get to the city center if you so desire. The balcony is quite spacious, and there are some lovely sunset views.
Nico is a very helpful and responsive host. The few times I've needed to reach out to him with questions or issues he has been quick to respond and eager to help.
The building is just off a major street, so there is some traffic noise, but as someone sensitive to noise I found it easy to get used to.