I believe to remember a recent discussion on HN where Gabriel seemed to be somewhat astounded by how important query speed is, even when we're talking about seconds here, and promised to look into that. I guess we have become spoilt and now cannot go back to waiting if only three seconds sometimes.

I've been DDG as my default search engine in Firefox for quite a long time now, and sometimes I still find myself re-running a query with "!g" - mostly when I expect to have to tweak my query once or twice and google is just faster (and still gives better results sometimes).