I pay for it, the results are quality and the fact that my brain doesnt have to sift through ad results and can just look at the real data is so nice. Additionally, they have a large number of “lenses” which can change the scope of your search. For example, they have a lens for searching lemmy as well as lenses for the “small web”, which filters out all the results from massive corporate websites and gives way more personal project sites and the like.