Much better than Oculus
The Mirror is one of the best found-footage horrors I've seen in years.
While Oculus (the feature film, not the short) felt overlit, overproduced, and ended up a cliche jumbled mess, The Mirror is much more nuanced and tonally pure, both creepy and tense. The rhythm of the narrative (alternating day and night) subtly gets under your skin, making you - along with the characters - feel the dread of night falling. The set and framing give a sense of surveillance and claustrophobia, yet make you wonder about the unknown darkness at the end of the hall, or the unseen corners just out of the camera's focus. But the filmmaker made all this look easy, natural, 'untechnical,' as if it were really shot by amateurs, getting inside your head on a subconscious level. He obviously did his homework. Anxiety-inducing. Well done.
Also, if you're not a professional reviewer, why continue to watch and review found-footage movies if you hate found-footage movies to begin with?