That said, there are a lot of issues, in my opinion. Clicking that menu arrow pops out a really bland box with no padding and no structure to the content. The "header" text is wrapped in dashes, but the text looks exactly the same as the rest of the text in the box. Like someone else said, the mouseover effect on the individual results is really harsh. The zero-click box at the top fades in to the background, and the sponsored link is intrusive and throws off the flow of the entire page.
I hope you folks keep working, because the progress I've seen in the last couple years has really been great and I want DDG to be a huge success. Search is completely ripe for disruption - Google got simplicity right, but most of their recent updates have been boring or steps backwards. Keep fighting the good fight. And if you're ever looking to hire a UI / UX designer, let me know where to apply. :)