Absolutely! I'm not the person you asked, but that's my answer. I've been using it for about 5 months now, and my sanity is greatly preserved. Google, Bing, and all the others were driving me crazy with how worthless the results were, and how every search somehow pushed a product or news site.
Yeah, it's pretty great when I search a question and it just puts the answer at the top of the page, as determined by the consensus on whatever pages it has crawled. I haven't fully trusted that yet and still read the pages, but it hasn't been wrong yet. I'll probably start trusting it.
It won't be worth it for everyone tho, I am a heavy search user, I search many times a day for work and just cause I like reading about everything. Someone who searches once or twice a day might not find value.
Yes. For me Kagi is like Jackett (a selfhosted website to search torrents). I can tell it which websites I like to see results from. Or I can block websites entirely.
If Google also adds ability to block specific websites I will go back to it. Many people say Google's results are bad, for me it's bad because I keep seeing websites I hate in their search results.