Except we can't trust any of the ratings on Amazon, so what are you going to metafilter on?
TheWireCutter.com is reasonably reliable and are up-front about their use of affiliate links.
At least some of the mainstream consumer periodicals are reasonably reliable, like PC World and MacWorld.
You could do a MetaFilter-like combination of those review sites.
But Amazon.com is notoriously unreliable for reviews. As is most any other e-commerce platform or shopping site with integrated reviews.