I love this movie because it's intense and uncomfortable, and it's the type of experience you can really only have with a few directors - Yorgos of course being one of them. Colin Farrell is a king of dark comedy; when his seriousness and absurdity breaks, it's usually enough to break the viewer (me, lol).
I've read reviews that take this movie so seriously, hailing it as a film that tries so desperately to be clever and (dramatically) make a statement. I think it fits right in with the best of dystopians - it reads like a novel, it has a level of damning absurdity that makes the consumer go, 'Wow that would never happen... unless? (eyes emoji)'. Hailing it as prophetic takes away from the immersion, imo.
The small details/one-off quotes make this movie charming, like, "We only play electronica music," and, "Is there a bisexual option?" I can't help but wonder how Joaquin Phoenix's character in "Her" would fare in the same role.
Anyways, you probably won't remember what happened in this movie a few years from now, but you'll remember how you felt. And that's probably the biggest tell-tale sign of a favorite movie for me. It's kind of how I feel with Lost in Translation, too, which I had only seen because of this movie group.