Not the person you're replying to. But I do most of my "deeper" research online with LLM backed tooling these days. Product research in particular you need to instruct the tools to reference latest data and not rely on "memory". Many brands have excellent reputations that degrade steeply over a period of months or years. I've been bit by this both with and without LLM tooling though. If I'm searching for the hours of a local restaurant I'll still just use a search engine.