This may seem silly, but I am in awe.
Currently I have gotten addicted to reading Japanese Light Novels. As such, I started reading the Seirei Gensouki series. I read the translations via Jnovel Club and I have started reading the corresponding web novel that got picked up to be released by a publisher.
Although I cannot judge grammar considering the web novel is release by amateur translators, i can judge story content. What the publishing company and editors have done is amazing. They take a diamond in the rough and polish until it is shining by getting the author to add stuff, remove stuff, and overall tighten up the story. It really is amazing. The web novel goes from a 4/10 to an 8/10 just by the virtue of having someone knowing the industry help the author. I am quite impressed.