I use it for coding every day now. I ask it for examples of such and such implementation, in a way that's impossible to get through documentation or even by reading sample code on the internet. For example, I'll ask:

"How can I code a mock for a boto3 dynamodb client, using unittest.mock, using a patching context manager"

And it will give me a highly relevant example, often right or close enough.

I will occasionally ask to come up with a function based on requirements but I don't find that nearly as useful as using it as super advanced search engine.