Comment by Yenrabbit

I was able to read the code it wrote, and check that (as hoped) it was using a good existing library to do the heavy lifting. And I had it make plots that I could visually use to check that the values were 'reasonable'. The value in that case was simply that I didn't have to leave the couch and write the code myself (although if the result was actually needed for anything more important than a smug 'i thought so' confirmation I would still have taken over and validated it kore carefully).