The new Google product review update is going to reward sites that provide in depth product reviews. Here are some things google recommends to get this boost in the rankings and Google Ads quality score.
-Show what the product is like physically, or how it is used, with unique content beyond what’s provided by the manufacturer
-Provide quantitative measurements about how a product measures up in various categories of performance
-Explain what sets a product apart from its competitors
-Cover comparable products to consider, or explain which products might be best for certain uses or circumstances
-Discuss the benefits and drawbacks of a particular product, based on research into it
-Describe how a product has evolved from previous versions.
-Describe key choices in how a product has been designed and their effect on the users beyond what the manufacturer says
I also think having google product review star rating ad extensions will get more attention after this update.