I second this. Perplexity is the only AI I actually pay for. It absolutely excels at the kind of deep search into narrow domains where expertise is concentrated in forums and specialist sites. Things like mechanical work on obscure classic vehicles, vacuum tube electronics, company tax arcana. It's also very very good at those questions you sometimes wake up with, where something happened in the news six months ago and you think, "Whatever came of that?"
Its deep research and Pro modes are great at synthesizing thorough briefings on complex topics too, to get up to speed on a new client or job responsibility for example.
It's not a chatbot for me, it's a brilliant, tireless little research minion.
As always with any LLM you should double-check its final, specific answers. It does occasionally hallucinate when information simply isn't available. Your research minion is just that - a minion, you have to have the context. It's not a teacher or guru.
EDIT: the bottom line is, it came along at exactly the right time for me. Google's search results are pages of ads, and DuckDuckGo insists on showing page after page of content-farm blogspam for the types of topics I search for. It cuts right through all that crap for me.