I’ve been using Kagi since their public beta, and paying for it has been a no brainer. For programming related searches it isn’t even comparable to Google, as there are very little/no SEO spam re-post garbage sites (like the ones that just scrape and reformat GitHub issues or stack overflow questions). And if there are, I block those domains and never see them again. For all other searches, I have the same experience of better results with less garbage.
The lack of ads has many great advantages, somewhat obviously. Results load faster, my pihole doesn’t break anything, I can see the top result immediately, I never click a sponsored result on accident, etc. I don’t really use many of the advanced features like lenses or GPT functionality and still feel like I get my moneys worth every single month.
Where does the distance to the sun enter into this equation?