"An aggressively priced portable AC whose performance claims don't match its engineering."
The '8500 BTU' rating is a legacy measurement. The required US Department of Energy (SACC) rating, which accounts for the unit's single-hose inefficiency, is unstated but is likely closer to 5,500 BTU, making it suitable only for small rooms.
This unit is for someone on a strict budget needing to cool a small bedroom or office (under 250 sq. ft.). Its very low upfront cost is the primary reason to consider it, especially for renters who cannot install a more efficient window unit.
Anyone trying to cool a room larger than 250 sq. ft. or a space with significant sun exposure should look elsewhere. Users sensitive to noise or concerned with electricity bills should seek a unit with published SACC, EER, and decibel ratings.