I run my own instance (behind basic auth and some other stuff) and default my phone and personal boxes to it.
I fall back to DDG on work machines (no reason to even hypo risk exposing personal search hist to my corp IT folks) but otherwise I’ve little reason to use anything else.
Reverse phone search kind of sucks, but I can live with that.
None of the engines SXNG hits would meet my needs individually, but a quick skim of the well-ordered results (which by default note the source) generally gets me what i want in first page.
If not, it’s a cue that either my search terms are crap, or I need to narrow further.