We had a very nice stay in Piano Fonte. Giuseppe and his mother Angelina were very nice and friendly and made our stay as pleasant as possible. They also gave us tips on restaurants and excursions.
The room was clean and the bathroom was in a very good condition. The bathroom is used by guests of both rooms. But no problem. We could take the fresh vegetables from the garden for cooking. The outdoor kitchen is well set up and it's fun to have breakfast there or cook. There is also a very nice view from the terrace to the island of Vulcano.
From the harbor the house is about 4 km away and you can go by repeatedly moving day Citybus to the house. On foot it is uphill but very tedious. We took just before the harbor a scooter (20 € / day), the simplified much.