I've found it to be pretty good at transforming and/or extracting data from human input. For example, I've got an app that handles incoming jobs, and among the sources of those jobs is "customer sent an email". Pretty neat to give an LLM a JSON schema and tell it to fill the details it can figure out from the email. Of course, we disclose to the user that the details were filled in by AI and should be double checked for accuracy - But it saves our customers a lot of time having the details sussed out from emails that don't follow a specific format.