"An aggressively priced cooler of last resort, with performance to match its budget."
The '8,000 BTU' figure is a marketing number based on an old standard. Expect this unit to effectively cool a small bedroom (around 200 sq. ft.), not a medium-sized living area, especially in direct sunlight.
This unit is for renters in small rooms where window units are prohibited and the budget is the single most important factor. It provides relief from extreme heat on a minimal investment, accepting major compromises in efficiency and noise.
Anyone who can install a window AC should, as it will be more powerful, efficient, and quieter for a similar price. Those needing to cool more than a small bedroom or who are sensitive to noise will find this unit inadequate and intrusive.