It just works. No need to sift through dozens of config files and options and issue a hundred verbose commands just to get the system in a somewhat working state. All my laptop's buttons work correctly out of the box. And it didn't even come at the cost of sprawling complexity maintained by a patchwork of corpo patrons, underpaid code monkeys, and forum users. The system just fits together very well. The documentation is amazing too.
Easily my favorite Unix. If Linux was too complicated or barebones for you, give OpenBSD a try!
Which is often a rather big "if".
I do respect the work that goes into it. but saying "it just works" is a phrase that needs an asterisk.
I said that because I use a lot of strange hardware. OpenBSD will work great on pretty much any PC you can find. Maybe even better than Linux if it's particularly old.