@kiwidude, I recall that one. I'd assumed Iskariot was talking about format quality.
In the other realm of rating
content quality, I also prefer vague. Most of my books are 3, average. Some are 4 good, probably reread someday. A few are 5 excellent, probably reread more than once. 2 poor, I usually just trash it, except for a few placeholders in series. 1, bad, ditto.
edit:
@Iskariot, missed your preceding post. I didn't hear it as criticism. I was glad to hear you read "How I Manage…" (and gladder you found it useful)