Just entered this query as is, without configuring any lenses, and got a bunch of results from /r/synthdyi. I suppose it's good? I imagine if you use reddit a lot, you should bump its relevancy and add a lens for it, as other folks here described. But from that I see, it does decently even without that - even for topics where there's a lot of garbage contents, like reviews, it returns mostly the legit review sites, even though choosing which one do you trust would be a challenge. If you have your preferences, then bumping the relevance for these sites is easy.