Nothing fancy like Apache etc.
After enabling systemd migration package, I noticeably experienced at least 1/3 increase in startup speed and far far less garbage, ahem, info on the screen.
That said, because systemd works with socket activation, it is much more logical, self-organizing/paralleling init.
The only point against it is virtually "learning something new" thing. ...and BSD-too buzz (what? on servers?), if you are affected by it.