I use DDG for years, and it's at most once a month when I can't find something and need to fall back to Google. Maybe I got used to the suckiness? Or maybe it's relative?
Startpage = Google
Bing/DDG results suck (when localized to Sweden), so I use Startpage.
I know it's owned by an ad tech company now, but I haven't seen any proof that will affect me. Its reach can't be compared to Google's, which has its trackers on just about every web page (Google Analytics and Fonts).
https://www.ghacks.net/2012/02/22/scroogle-founder-pulls-the...
Google is just so much better at finding technical related content.