Concierge.com's insider take:
Opened by a local couple, Hotel Signum is located in a low-key gorgeous landscape between twin volcanoes that spills down to the pristine sea. The 30 rooms are charming rather than slick (snag one with a Tyrrhenian sea view), and the grounds have an incredible vista of Panarea and Stromboli in the distance. The sunset terrace in particular is a perfect location for doing absolutely nothing but staring off into the distance. If you must move, rent a moped and spend your time exploring the island's gorgeous fishing villages, or hike one of the dormant volcano trails. The included breakfast here is one of Sicily's best and dinner isn't shabby either, though you'll have to let the staff know if you are staying for the meal that morning. One caveat: the ferry schedule can be sporadic when the seas are rough and the staff seems completely clueless about whether they are running—a frustration when you turn up at the port and there is no way to get back to the mainland.