"An exceptionally cheap portable AC whose performance and efficiency will almost certainly match its price."
The '8,000 BTU for rooms up to 350 sq.ft' spec describes its theoretical heat removal capacity in a lab, not its real-world performance. In your home, its single-hose design makes it effective for a small bedroom at best.
This unit is for someone needing last-resort cooling for a very small room on an absolute minimum budget. If a window unit is forbidden and $160 is your hard limit, this provides mechanical cooling.
Anyone sensitive to noise, concerned with electricity costs, or hoping to cool more than ~150 square feet should invest more in a unit with documented SACC and EER ratings. The long-term costs will likely negate the initial savings.