A single point of failure just waiting to bite hard one of these days.

It was supposed to be an init system with better dependency support but it has morphed into a Hydra that sucked in almost every service that may be running on a machine.

I gave it a chance when Debian released Jessie (clean install on a vanilla HP Intel box). It locked up hard on the first fsck and none of the incantations to make it divulge why worked. I have stayed clear of it since even though that makes life miserable on desktop machines.