I've been using it as my primary search engine for a couple of months. It's not great as a search engine. I find their locality of search to not be well-supported (e.g. the search "food near me" works good in google and not great in ecosia).
Ecosia doesn't emphasize recent events, news, or posts in search results as much as I'm used to --- but I haven't decided if this is good or bad.
It's not so bad that I've changed. But I do sometimes use a better search engine when I want better results.
Yes, I haven't used Qwant though. I'd say it's pretty equal to DuckDuckGo, maybe a little better after they started mixing in Google results. Generally speaking I do think that the Bing powered search engines does much better than Google, but Ecosia had a few specific searches where it's would fail me, that's gone now.
i have ecosia set as my default and use google or something if i really need it, but that rarely ever happens. its not the best search engine in the world or anything but it does the job perfectly fine and does some good in the world, so i'm happy to use it.
