the simplicity and therefore reliability. the only crashes or incidents were caused by me; i can't say that about any other operating system i've used, even OpenBSD. i love BSDs because they are always simple and reliable, but alpine never fails. ever. granted, i'm a moderate user (not a power user) so if you're like me you'll never run into a problem. the only quirk that isn't detrimental is musl libc; *some* programs don't run but tbh if you can't run it on alpine nowadays, you probably should look for an alternative because that means it's some sort of hyperspecific nvidia thing or whatever.
alpine is the openbsd of linux, and can run on every hardware i've tried (unlike openbsd)