Linus has also said that he likes many things about systemd, thinks it's interesting and shows a lot of promise. Source.
He also said the following:
LinuxFR : Do you think systemd is a huge improvement in comparison to SysV init ? Is it a game changing technology ?
Linus Torvalds : I also will take a somewhat wait-and-see approach, it's not widely enough used yet. I do think bootup performance is important, and anything that helps that, and helps make it more flexible is a good thing. Would I call it "game changing"? Probably not.