I've noticed Amazon is loaded with reviews that were "free stuff for review". A lot of which is the import knock off stuff, like el-cheapo "GoPros", etc. I don't trust just the stars anymore, I take the time to read the reviews. The policy must be to have a disclaimer because most of them usually state when it was a free product sent to a reviewer, but it skews the star rating system. I want real regular people who bought the product to tell me what they think. When you get something for free, it just automatically skews the bias, afaic. I know there's reviewers that don't let it, but these are the minority, imo.