The beginning with the fair/house of mirrors had potential and truly felt creepy. The whole deal with the under people was just ridiculous and I lost interest with their moaning and awful voices.
I HATED Cabin in the Woods and that seems to be universally loved on the board, so I guess I have a different taste in horror
This review kind of hits on what I was trying to get across better:
Us feels like a high school senior trying really hard to pull all the symbolism out of The Great Gatsby so they can put a cute two-line metaphor into an essay. "The increasingly vapid and spoiled American is blind to the sufferings of the people they've stepped on to get to where they are today. When finally confronted with this fact, it's like looking at a distorted version of yourself, but your reflection is the suppressed, angry, concealed version of you". Metaphor achieved. The metaphor isn't necessarily bad, but the component pieces (the dopplegangers living underfoot, the double-edge scissors) feel forced. Unlike Get Out (which I loved), where the symbolism feels ever-present and the emotions arise organically, Us feels more like checking boxes from scene to scene.