These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Cult Classic: Both the original and remake have developed followings since their theatrical releases.
Darkness-Induced Audience Apathy: The dictates of the message demand that the story end badly, so once you see where it's going, there's no reason to watch the rest.
Evil Is Sexy: Paul in both versions is a handsome young man.
Love It or Hate It: Reception of the film falls in two camps: "completely brilliant" and "utterly unwatchable". Sometimes both, but never a middle-ground. The fact that it was remade for American audiences didn't do much to help matters, and only seemed to prove to Haneke's detractors that their unpopular image of him as a humorless, to them at least.
Padding: lots of it, but in particular, a ten minute scene where we see Anne emotionally reacts to the situation and morns over the recent murder of her son.