Git is industry standard, because for what it give you it's a remarkably robust and simple program to use. We're all vaguely aware that the internals are complex, but the UX is clean and usable enough that the complexity usually doesn't leak out.

But the day this breaks down and I have to deal with bloom filters, packfiles, maintaining the git garbage collector or rerere cleanup, is the day I switch our codebase to a centralized VCS.

This stuff is cool to learn about; but it's 5 layers removed from anything I want to be thinking about in my day to day work.