What about the fact that it's not reliable? Seems unusable to me if you are not a domain expert that just gets help from the system and who is able to judge whether its advice is true or made up.
It’s reliable for many many use cases (e.g. anything that transforms text into a different representation), but not for a few others (e.g. anything that requires logical reasoning) - a F1 car is great on race tracks, we don’t see people taking them on gravel roads and then complain they’re unreliable …
I'd say it's unreliable if you can't decide apriori for which use cases it's reliable. For instance take this example where it makes contradictory assertions