I like Kagi Search, it's the first non-Google that I've been able to stick with and I have no desire to leave, but I did downgrade my account to professional a few months ago.
Kagi Assistant wasn't "bad" or anything, but I feel like I get more than $5 of extra value out of a ChatGPT membership. I can generate images and there's almost no usage limit (unless you go crazy with o1 or something).