I like this game - and I really can't see why I wouldn't. There is only one major difference between this and, say, Dungeonquest, Sorcerer's Cave or any other simple dungeon crawl/adventure game: This game has greater variety. Every room has some effect on the game, and, although there are only about a dozen or so different monsters, every card played on them changes them - no two encounters need ever be the same.
Sure, there are two other, minor differences:
1) Unpredictability. Not only need no two encounters be alike, but even within one encounter things can change radically! Modifiers can rack up (or down), and things can get out of hand rapidly. No one person controls any encounter.
2) It doesn't take itself seriously. Everyone makes such a deal about the childish jokes - so, you think regular dungeon crawling is so highbrow intellectual?

A Humungous Fungus is just another high-level enemy to fight.