Yes, I'm aware of Which? -- my parents used to get it when I was growing up. It was only ever able to cover a tiny part of the market for a few selected things

Yes, I'm aware of Which? -- my parents used to get it when I was growing up. It was only ever able to cover a tiny part of the market for a few selected things, though. (And of course only a small minority of people would ever see it.) I'm not sure how well that would scale.