We had a good time in Palermo. The location of the apartment is probably the best you can get. Close to the water and city center. A'nìca Ristorante is a great place for food just a few steps away and a nice bar is right next to it.
The 2 terraces are great to relax with a good view except for the crane in the backyard which seems to be a meeting place for seagulls. They can be loud and annoying if you sleep with the windows open. Other than that there isn't much noise from the street or something.
We didn't use the queen size bed upstairs. The room was pretty heated up and not very light-flooded because it has only a small window. There is air-conditioning though if you don't mind the lack of light.
Thank you for everything! :)