E.g. I use it for stuff like "find me the best air cleaner available in Europe", or "List all WCS events in Europe in upcoming 2 months", or "find me a class doing xx in city xx that has the best teacher", "find me a presence sensor for home automation that does xxx".
I usually only care about quality - and it's amazing in finding good stuff. I bet if I asked it to optimize for price, it would save me a lot of money finding good value items.
Similarly with other optimisation tasks - e.g. "I like to eat here and here, and do this and this. Find solutions that are just as good, but way cheaper".
I mention Deep Research from OpenAI (not from Google, and not just chatGPT with search), because that's the only model I found that does a good enough job for me - I'd say comparable to me spending a day on researching.