Some general comments :
- Openrc is a replacement for sysv init, not an addition.
- openrc has it's own equivalent of .service files, they are simpler
then systemd servicefiles
- my personal opinion about openrc is that it's not mature enough yet
for majority of linux users to replace systemd
The majority of Arch users however should be capable enough to use it
efficiently.
- systemd has many good things, but also many flaws.
This blog post gives the best description of systemd flaws i am aware of :
http://judecnelson.blogspot.fi/2014/09/systemd-biggest-fallacies.html
LVV