I have a couple of ads running, and I checked on the keywords. Most of them have a quality score of "ok." Some have a quality score of "great."
What's confusing is that the keywords that have a "great" score haven't had any clicks, while the ones that are "ok" have the most clicks and the highest CTR.
Huh?
Very generic keywords which get lots of impressions and clicks may not be highly relevant to your website or landing page, these type of keywords will have "Ok" or "Poor" quality score.
Some very specific keywords which get very low traffic may get "Great" as quality score.
The quality score is affected by "Landing Page" quality and thus this result.