Google's new Adword Quality Score - good or bad?

Google adword has just introduced a new Adword "Quality Score". That is, there is no min threshold to trigger a ad, so even if your ad trigger very low CTR, your ad will still be shown. (translated: "Google get more $$$ this way"

Is the new "Quality Score" good or bad?

A brief outline of this Quality Score:

# Ad Rank, or the position of your ad, will continue to be based on the maximum CPC and quality (now called the Quality Score).

# The higher the Quality Score, the lower the CPC required to trigger ads, and vice versa.

# You can move an inactive keyword to an active state and show ads by (1) improving its Quality Score through optimization, or (2) increasing its maximum CPC to the minimum bid recommended by the system.

Well i think it good from a publishers view if nothing else.