"It makes sound louder; calling it a 'cinematic experience' is a significant stretch."
The '90W' power and '3 EQ Modes' means you're getting a pair of small, underpowered speakers with basic frequency filters, not a high-fidelity system. This is a loudness and basic clarity upgrade, not an audio quality one.
This is for a secondary TV in a bedroom, dorm, or office where the built-in speakers are simply too quiet or muffled. The buyer values the extremely low cost and ARC convenience over actual audio fidelity. It's a functional, cheap solution.
Anyone seeking an immersive movie experience or satisfying music playback should pass. Spending even $50-$100 more on a soundbar from an established audio brand will yield a dramatic improvement in sound quality.