Vlad Rappoport shared a screen shot on Twitter of Google now showing a spot in the product knowledge graph cards for “editorial reviews.” I can replicate it on my iPhone for a search on [max trainer m5].
Here is the carousel for those editorial reviews, which is below the image, pricing, and user reviews:

Here is a full size screen shot of the interface from the top until towards the bottom. As you can see, the organic results are really hard to find here:

That is 2,500 pixels down before I cropped it off at the bottom.
Forum discussion at Twitter.
Update: Later today Google posted about it on Twitter:

Get shopping information in a snap. Now with a single search, you can quickly find product photos, videos, reviews, descriptions and more. pic.twitter.com/4w0OXyvAJ2
— Google (@Google) November 14, 2017

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