I don't mourn coding for itself, since I've always kinda disliked that side of my work (numerical software, largely).

What I do mourn is the reliability. We're in this weird limbo where it's like rolling a die for every piece of work. If it comes up 1-5, I would have been better off implementing it myself. If it comes up 6, it'll get it done orders of magnitude faster than doing it by hand. Since the overall speedup is worthwhile, I have to try it every time, even if most of the time it fails. And of course it's a moving target, so I have to keep trying the things that failed yesterday because today's models are more capable.