Marcello's house is great. The top has a fantastic view of Ustica's port, the sea and horizon. The house is perfectly located, both close to the center and close to the port. It's clean and has all the little things you need, such as coffee, sugar, cooking utensils, etc.. I would definitely come back.
Marcello was really nice and his assistant, Nunzia, was also super helpful. You would make a great decision by staying here.