The best thing about Kagi I've found from trying it recently is that it's results are actually really good.

Every time I'd tried DuckDuckGo over the years I found myself having to switch back to Google because I was never sure that there weren't better results going missing. Whereas Kagi often ends up with better rankings than Google—eg. Goodreads, which is great for real reviews, gets placed above all the random booksellers websites.