My loosely held theory on the wide variance in people's judgement of DDG is that some people really like/have come to rely on how much Google personalizes results based on all the other data they have on you, even if they are in the "Google has gotten bad" camp. DDG doesn't do any of that: it's much more like going back 20 years where you have to put all the context you care about into a query, you're not searching "in a bubble". For me, that's a very positive feature, but others may find it frustrating and not even be able to articulate why they're not happy with the results. DDG does do a lot of the nice "enhancement" stuff Google pioneered long ago, like embedding the intro of the Wikipedia page in the sidebar for a query with a strong match, e.g. a person's name. So for me DDG is just the right level of "smart": it understands common queries well enough to immediately highlight useful details, but it doesn't try to be so smart that you as a user stop being able to understand what it's doing under the hood.