Just learned about it recently. It has received a lot of praise as a rolling release distro. Also it uses runit instead of systemd.
It has been praised also for being more stable and better designed than Arch.
And I wonder how it compares to OpenSUSE Tumbleweed,
Iunno. I just prod void in a shallow way and it just works.
If I again encounter something I need that it does not have, I may bother to look what (if any) repo extension stuff it can do.