I've been using Airbnb for many years already and I can say without any doubt that Roberto's place is the best one!
I even couldn't imagine it better. Everything is just perfect! Very clean, everything is new. There are a/c, coffee machine, washing machine, electric tea-pot, oven, microwave oven, toaster, smoothy-maker(probably, I forgot to mention something).
The bed is very big and comfortable. There are very beautiful paintings (real paintings!) on the walls. The balcony is big and you can dry your clothes there. There are two tables wth chairs so it's comfortable to work if you need. There is very comfortable sofa as well.
Shower is excellent (and it's very valuable because not always you have such a big water boiler in italian apartment).
I'm absolutely in love with this apartment! By the way, the location is also very good (I stayed in different places in Palermo and this area is my favorite).
The neighbours are quite. I really don't have anything to complain about.