Is Del Mar Crab House on Larimer Street the worst restaurant in Denver? Some friends of mine went their last night. They weren't served the beers they ordered, the rare steak they ordered was provided well done, and there was a bug in their salt shaker. Even worse, the management didn't care, offering them a free crab cake with two dinner entrees at their next visit, and another round of beer. If you want good service go elsewhere.