Git design is surprisingly clean and simple. The main issue of git is its CLI and commands naming. They are indeed unclear. But again, concept behind is absolutely amazing. You just need to understand that git repo is a series of snapshots and after that all other details become clear.
Naming is difficult. Good names suggest the right metaphore to understand something. But for git, there is nothing similar in physical world. "push" "pull" and "merge" seem ok, but even "branch" is an original concept different of its usual meaning. Maybe git should have used non english words to avoid confusion.
Branch seems to fit the dictionary definition: "something that extends from or enters into a main body or source". And in fact, it didn't originate with git, it's at least as old as CVS.
