I spent a day fighting to get systemd to properly handle bind mounts on boot. It doesn't reliably mount them and there are tons of blog and forum posts complaining about it. It also surprised us that it doesn't obey the "bg" flag for NFS. You have to use "nofail" instead.

I have been informed today that a new MySQL cluster built at work on CentOS 7.3 doesn't reliably start MySQL on boot.

We have none of these problems with our FreeBSD servers. systemd eats away at my time every week and I loathe it. It might not be a nuisance for endusers but it's a nightmare for sysadmins.