You are considering whether to buy a product. You look at the reviews. Would the following review decrease or increase the chances of you buying the product?
Review title: Competent and worth reading
Product review: I confess to a weakness for biographies of U. S. senators. I seldom see one I don't want to read, and when I saw this one I knew I would have to read it. Smith actually had an amazing career (elected to the House of Representatives in 1940 and to the Senate in 1948, reelected in 1954, 1960, 1966, and defeated for reelection in 1972) and this unpretentious book, solidly but not exhaustively researched, recounts it well. It is quite laudatory, but will be critical when it is clear criticism is warranted. Mrs. Smith was not a great brain but she was a great working politician, ably assisted by her AA.
