It's especially true now that the big media players are finally waking up to affiliate marketing (NYTime buying WireCutter and SweetHome) and BestReviews (which was already an epic product review site in it's self due to the fact they built their own 10,000 sq ft testing lab) being acquired by Tronc (owns the LA Times and half a dozen more publications).
This is a great example of a top notch review site. They start at the homepage notifying that they make affiliate commissions, but provide top end reviews from independent reviewers. This is great to be honest up front. In addition to being transparent, they also take the content is king strategy. I randomly clicked on their “Top Home Projector” post where they reviewed (and linked) to several high end home theater projectors. Keep in mind that these high priced items produce high commissions. That may explain why they spent the time to write a 5,000 word post on it. This site seems to do everything right in being a prime example of an Amazon Affiliate Website. This site now has over 60 staff members working for it.