I stay at Roberto's place for 13 nights and I had great experience. In general I like the people who enjoy in doing their job and Roberto is one of them. It was amazing how with the same enthusiasm from he was welcoming guests in retroradio guesthouse every day and give them comprehensive inputs for quality Palermo/Sicily experience. He is the guy who love his city and he will be very happy to give you small tips and tell you about hidden corners and stories of the city. Regarding the location it is 50m from the main street and it is located central.
p.s. My main goal of using airbnb is to support locals in their small businesses and Roberto's place and accommodation is 100% worth to rent. I hope you will also enjoy in beauty of Palermo as I do.
Thank you Roberto, and see you...