I’ve tested kagi and agree that the search results are great. What I don’t like is that it’s making anonymous searching impossible, since I have to be logged in to use it (or use my unique token as part of the url for mobile searches).
Ultimately this means to me that in a private window mode (or even logged out with a fingerprinting resistant browser) I do not have the same degree of anonymity I enjoy even when using Google, let alone DDG or others.
I like the idea of not being dependent on google, but exposing my entire search history to one single entity is not my answer of choice.