"A last-resort cooler sold at a price that reflects its inevitable noise and inefficiency."
The '8000 BTU' is an industry standard rating (ASHRAE) that doesn't account for the inefficiency of a single-hose design. In your home, this unit will deliver the cooling power of a much smaller window AC, and only in a very small room.
This unit is for someone in a non-critical space like a small dorm or home office who is budget-limited to under $200. It's a purchase made out of necessity, where any cooling is better than no cooling and noise is a secondary concern.
Anyone needing to cool a medium-to-large room, valuing quiet operation for sleep, or concerned with electricity consumption should skip this. Spending an additional $100-$150 on a reputable brand will yield a quieter, more efficient, and truthfully-rated machine.