Intrigue average and not particularly inventive (for an X-Files case at least) - yet pleasant to follow I'd say. But the real deal is "out there": this sort of teasing, rowdy relation between Mulder and Scully all along the episode, funny and tasty, which by this mean settles a more human and chill mood than usual, and makes this episode pretty refreshing at the end.
Interesting plot. Plus, an unexpected and crisp connection to the storyline background...