I’d recommend using https://reviewmeta.com. It filters out suspicious reviewers and makes it much easier to avoid products with bought reviews on Amazon. Wouldn’t make purchases there without it.
“You agree that you will not under any circumstances upload, post, host, or transmit any content that:
is unlawful or promotes unlawful activities;
is or contains sexually obscene content;
is libelous, defamatory, or fraudulent;
is discriminatory or abusive toward any individual or group;
...”
It reminds me a lot of the OP-1 from Teenage Engineering [1].
1: https://teenage.engineering/products/op-1