Maybe nginx logs at usable, but my experience with reading logs in the old way was often "grep servicename syslog" and prayer that the tool didn't have its own magical log file somewhere else.

The backing store may be controversial, but the journalctl command line is much more pleasant. "I want to see log messages from the end of the last boot when the system crashed" is no longer a Rube Goldberg command line involving less/sed/grep/cut/awk and manual scrolling, it's supported out of the box with no configuration necessary.