Speaking as a reader, the one-star review wouldn't have detracted me, however 50% of your reviews (yes, only 2) indicating that your book needs serious editing *would* detract me. I have skipped several books where a significant percentage of reviews have stated that the book needs editing or is poorly written.
I think finding a way to indicate to potential readers that the most recent copy is edited or whatnot would go a long way.
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