I feel compelled to review this because I believe some took this movie too personally, and thus rated it poorly.
If you are easily offended, you might be shocked or uncomfortable on several occasions. If you understand this is an artistic work of fiction, or if you like dark, sinister comedy, you can laugh at how this movie relentlessly pummels you with awkward moments. My advice is to cast away your moral standings in reality, and try see this movie from another perspective.
To be vague, it turns out there's a method to the madness towards the end. And for me, the underlying message made it worthwhile. Jason Bateman was incredibly convincing in this role!