Poor "reception", poor amenities (except the pool), absent staff, for EUR 140.00 in Mid-August, terrible value for money, even in the Eolian islands, mostly a tourist trap...
All in all, it's a hotel I'd consider only worth half the price if it was to be inland (at the same period), and for the same price the day before, I had a much better experience with Stromboli's "Sirenetta". So find yourself another place, or ask yourself whether you really want to spend a night on Vulcano.