Rate a review "exceptional" if it gives readers outstanding advice for making a good buying decision

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The review covers all aspects of the product and its user-friendliness which would be relevant to making a product choice. All remarks are founded on evidence from personal experience and the author remains objective throughout. A reader could find sufficient information here to base his/her purchase decision on this review alone.

Rate a review "very helpful" if it clearly supports others in making a good buying decision

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The review covers a wide range of product features and the author's position is clearly-explained, well-structured and founded, for the most part, on solid evidence. This review would be of great use to somebody making a product choice, but would have to be used in conjunction with other information sources.

Rate a review "helpful" if it supports readers in making a good buying decision.

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The review is accurate and clear. The author may not provide complete information but what (s)he does say is useful. The review would give readers an idea of the quality of the product.

Rate a review "somewhat helpful" if it gives somewhat inaccurate and/or poorly presented information.

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The review is not always objective or founded on evidence from the author's experience. The presentation and structure are unclear.

Rate a review "not helpful" if it gives inaccurate, offensive and useless information.

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The review is not a helpful decision-making aid. The information it provides is subjective and lacks foundation. Perhaps the content contains comments which do not relate to the product and may be offensive to other members.