I was just looking at Windows tablets on Amazon. Usually an item will have at least one or two detrimental reviews. I found one with 18 five star reviews, but when I read them, at least half had the same title as other reviews (word for word), and many were talking about "laptop", not tablet. None actually referred to the product by name. I am guessing these were copied and pasted from other reviews. I think I read about the rise of fake reviews in the Grauniad, but as usual, Amazon do sod all about it. Caveat emptor, I guess!