Attendees of the Glasgow Willy Wonka Experience called it a what? (We can tell you: it wasn’t magical!)

The Glasgow Willy Wonka Experience gained notoriety for its extremely poor quality, leading attendees to describe it as resembling a "horror movie set." The event featured sparse, unfinished decorations, a nearly empty warehouse venue, and a general lack of promised attractions, creating an unsettling and disappointing atmosphere far removed from the magical experience advertised. The other options are incorrect because the event was not a corporate event, a fully-fledged theme park, or a typical kid's party; its defining characteristic was its bizarre and unsettling appearance.