One must be careful when buying a highly rated product there as they have been caught copying positive reviews from entirely different products to boost a poorly performing one.
I just went to visit one of my favorite personal reviews. Surprise! It was deleted. Of the 837(?) reviews that remained, almost all of them were positive reviews but of a vaguely similar product with only a few negative reviews for the actual product.
I read someplace that the best way to buy on Amazon is to mentally throw out the five star and one star reviews because they're most likely fake...