No doubt. ESSI (rent the cottage on the field, very basic, wonderful setting) and ESSV (basic lodging at club, walk or bike into town, Smart car available for rent). Go there.
On the way up…Aerö is nice. The city Rönne itself is beyond boring, but the rest of Bornholm is said to be nice. EKRN superconvenient to be a “big” airport.
ESMH has a nice gathering Tuesday nights and basic lodging. Also a close bike ride to the beach and smaller city.