I don't agree that these are just limitations. The fundamental problem cron tries to solve is very simple: I want to run a program automatically at specific times. There are probably many features of systemd timers that can be considered niche or extraneous in solving this problem, but the ability to easily know when the program last ran and what its exit code and stderr output were is not one of them. I believe that if an alleged solution to this problem doesn't provide at least this, it's not really solving the problem.

> Unrelated to cron. Bad script

Again, worked fine when run manually, worked fine in a systemd timer. Pretty sure I still have it running today and it continues to work fine without ever failing.