Well, I think 5.3's rather rough on this. It's hardly a masterpiece, but it is consistently not-bad, at the very least, with brief elements of greatness. Most of this is due to the fact that, with little to none of this "direction" business, and a couple of shaky lines (sorry, Herr R) it's chiefly up to the actors to move the story along, and it's in more than capable hands as far as that went. Kurt Raab wrote himself an entirely great role, at the least, and acted it with equal (and occasionally startling) aplomb.
If you like Fassbinder's crew, but don't necessarily require the inherent talent of Fassbinder behind the camera, you should certainly see this.