I've found that if you give it pairs of "Why..." questions it'll happily argue both sides of the coin ("Why is X better than Y", "Why is Y better than X"). But in giving me justifications, it gives me fodder for further traditional searches. I don't trust it to give me a correct answer, but I do trust it to define the problem space a bit.
I use ChatGPT for 200-300 queries per day and it’s astonishingly accurate.
I’ll double check with Google if I’m unsure but it’s almost always been correct.