I've also been trying to use it semi regularly and providing feedback on their search results. I appreciate their post about true keyword searches still being valuable (ie search engines becoming "answer engines").
It does feel worth supporting, but yeah. Some results are rough. Like you look up an official government publication and I can only get the Hindustan times or a weird forum.
It also doesn't seem to want to find PDFs which is very unhelpful when looking for documents.