User blog comment:PixCity/Tips on Posting Proper Reviews?/@comment-27905100-20161026232254

Follow Empy's example and be as scathing as possible without offering up any positives whatsoever.

Actually, though, just go in depth about what went wrong, what they could do to fix this; what went right, and how to use that in their next pasta; and any suggestions you have to make the pastas better.