I don't have any skin in the game, in fact I bought one and canceled the order due to questions with quality. Nevertheless it is about as cheep as you can get per Wh so it is still a good deal if you need to power something away from humans and anything that can catch on fire. Also given my proclivity for accidents it's best that I stick with quality brands.
Here's a review of a different model by the same manufacturer found by @jrchurvnjef. Spoiler alert: it isn't great: https://goughlui.com/2023/08/31/quick-review-teardown-veekto…
One feedback on the Amazon app.