How bad is it? It's about people who literally hump trash. It's intentionally awful.
Should you see it? Tough call. It might be art, but I don't think you need to see it.
From the director that gave us "Gummo" and "Julien Donkey-Boy" comes his most regressive film yet. Filmed on cheap tape, actors pretending to be elderly (in very unconvincing make-up) but not succeeding appear in random scenes involving trash, toys and occasional nudity and profanity. It's a bit like David Lynch making "Blair Witch Project." It's a waste of time, but it is different.