We enjoyed very much our stay at Nadra and Luigis house. They are very helpful and give you a lot of recommendations. The house is in Piano, a silent village in the middle of Vulcano. If you want to party maybe you have to stay in Vulcano Porto, if you want to enjoy nature and a bit more silence, then this is the perfect place. You will need a vehicle to get there, but Luigi will perfectly support you!
Luigi also speaks perfectly German.