It's beyond ugly, it's needlessly incoherent. I use it because I have to and hate it. I've heard people say "the data model is a work of beauty". And I suppose that's true, but why have such a fucked up and confusing set of commands? Doesn't a "brilliant data model" deserve an equally brilliant command line?
The thing that saves git is that it works, and by some miracle, it is popular. People just memorize what they need to do for their workflows and that's mostly fine. Sometimes there's a screw-up and you blow time googling around or looking up fixes.
People won't publicly admit it but a lot of work gets trashed because finagling git intricacies is more painful than throwing away some work and starting over.