Guiseppe's is a wonderful host - very easy to communicate with and responsive and kind. He went above and beyond to make my stay very comfortable and easy, as I was travelling alone. He allowed me to leave my baggage before the official checkin time, agreed to my request for a double bed, despite being on my own and let me leave my luggage again until evening, when I left Palermo.
He had cold water in the fridge for his guests and there was coffee, olive oil, salt, pepper and everything you need to cook with. Many people advertise having a kitchen available to cook in but Guiseppe's was truly that, very organised and everything you cold possibly need to prepare food. It was all spotless as well!
The location is 5 minutes from Theatre Massimo, on a residential street. It is very quiet and tranquil. But, again, 5 minutes away from Capo Market, the Opera House and many wonderful restaurants, cafes and other entertainment.
I think this is the best place I have stayed in Palermo!