something went wrong...
I have been able to get some good coding advice from it, tho it can take a few iterations refining your requirements and telling it which bits it got wrong. In the end I have usually done good research of the subject matter to confirm if it was correct.... Or I just start debugging to see the results.
My usage dropped off because so often it failed with that annoying "something went wrong" response. It feels wrong to have the overloaded system respond with that message instead of just saying it is too busy prioritizing paying users.