A stronger opponent of AI than I you will not find. However, I think AI will debug far better than humans do. When I wrote software full-time (as an engineer, not a programmer), I debugged by mapping every possible way the code could run, and then I came up with input combinations to test every single possibility. It was painstaking, but worked very well. I think AI will do that quicker and better than I could. What I don't think AI will do well is creativity in design and consideration of emotions when required.
Like everything else, it'll work "fine" until it doesn't.
But I hear you. I wrote a text editor many years ago - I was running a dial up BBS at the time, so I put out a call to my users for volunteer beta testers. The amount of crap, and outright bugs they found was astonishing - all because they were just different people and used the program differently. It helped me make it into a rock solid program!
