This is a fantastic apartment and Roberto is genuinely a first class host. As others have mentioned the apartment really is right in the centre of Palermo and some of the best bars and restaurants are but a stone's throw from the front door.
Roberto is clearly well known in the district and was great at recommending wine bars and places to eat, even hosting us for some great wine. We had to make some last minute changes to our booking due to flight cancellations and Roberto was very understanding about this.
There is easily enough space for five people and plenty of living space to enjoy. We would most definitely stay at Roberto's when next in Palermo