"A cheap, versatile connector for your TV that also happens to make sound."
The 90W rating is peak power, a momentary marketing figure. Real-world, continuous power is far lower, offering a modest volume lift over TV speakers, not a cinematic experience.
This is for a secondary TV in a guest room or a dorm room where any audio is better than the TV's tiny internal speakers. The main reason to choose this specific model over its competitors is the inclusion of ARC/HDMI and all necessary cables at an impulse-buy price.
Anyone expecting genuinely good audio should look elsewhere. Spending even $40 more on a clearance model from a recognizable budget audio brand will yield superior driver quality, tuning, and build materials. This unit is built to a price point, not a sound standard.