On: DuckDuckGo on CNBC: We’ve grown 600% since NSA surveillance news broke

[S4M]

For things in English, I would say it's acceptable but relevance is still below google and I find myself switching to google for about 10% of my searches, being unhappy with what DDG got me.

For things not in English, it's quite bad.

[realusername → S4M]

I would say the same, for English it works quite well (the quality is maybe a bit below Google but not much). But for other languages, it just does not work at all.