Mmm I have a general dislike of systemd because it doesn’t adhere to the “do one thing and do it well” approach of traditional Unix systems.
It’s a big old opaque blob of software components that work nicely together but don’t play well with others, basically.
Edit: but it solved a particular set of problems in serverspace and it’s bled over to the consumer Linux side of things and generally I’m ok with it if it simplifies things for people. I just don’t want a monoculture to spring up and take root across all of Linux as monocultures aren’t great for innovation or security.