Like siblings, I switched and never looked back. I used !g with DDG often, more as the years went on tbh, but with Kagi the only time I use !g is when the search results end in one page, which is rare and almost always the Google results are noisy trash. Maybe 5% of searches I check Google and 10% of those actually return something useful that Kagi didn't. On balance with how much better the other 95% of queries are, first time I'm excited to search for things.

My biggest complaint with Kagi is sometimes when I search for something the top result is a pinned domain that maybe hit the right keywords but mentally to me it was unrelated to the search I was performing. That's a pretty good problem to have at the end of the day.