"High-spec power and fast charging at a price that reflects the unknown brand."
The '43 Mins Fast Recharge' means the unit can draw over a kilowatt from your wall outlet to charge rapidly, a process that is convenient but will be loud and produce considerable heat.
This is for a buyer who prioritizes the best possible specs for the lowest price and is willing to gamble on a generic brand. The combination of high output, fast charging, and a true UPS function is rare at this price point.
Anyone who values a proven warranty, reliable customer service, or a long-term track record should look elsewhere. If this is for a mission-critical application, paying more for a brand like EcoFlow or Bluetti is a sensible insurance policy.