This is not a series to watch in low resolution. Classroom of the Elite relies heavily on visual storytelling: the cold, sterile architecture of the school, the subtle shifts in character eye movements, and the infamous "tools" speech in Episode 12. In 1080p high definition, every detail—from the flicker of anxiety on Suzune Horikita’s face to the dead emptiness in Ayanokoji’s eyes—is crystal clear. Lower resolutions muddy the lifeless expressions that make the show iconic.
— Highly recommended for dub fans, recommended for everyone else. Classroom Of The Elite English Dub 1080p Season 1