I agree with Pex. Having reviewer's reasons for score is good. Having obligatory scales is bad - because different reviewers have different ideas what it must mean, and as it's scales, no one feels obliged to give more or less explanations.
And agreed with scores too. Partial scores exactly the same as full scores multiple on 10. Why to have 6.9, if you can have 69? Either you are in discrete numbers - or you simply need bigger scale. (For me, 10 is enough, but, well, why not 100?).
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