No, I strongly disagree. Exposing the datamodel can be part of an excellent user experience if your target audience are programmers, as is the case with git. Where git goes wrong is numerous commands that do numerous very different things if given different flags. That has nothing to do with the underlying datamodel being exposed; it's just sloppy planning and design. That part is terrible UX.

Perhaps, but speaking personally, that doesn't matter much to me. What matters to me is how much easier a tool makes my job, and of all the version control systems I've used, git is easily the winner.

And I don't want to say that Git isn't an improvement over many other version control systems.

But, IMO, the real sea change there is the shift to a DVCS, and not Git's interface. Within the set of DVCS that I've used, I find Git to be easily the most difficult to understand and work with, and the one where I have to spend the most time reading and grokking abstruse explanations of the tool's implementation details in order to figure out how to deal with some edge case.

I don't think that I'm the only one. My sense is that people whose only DVCS is git are much more likely to love it unconditionally than people who came to git after having first spent significant time on some other DVCS. For my part, as another concrete example, I have to spend a lot more time helping junior devs with source control snafus now that I'm at a Git shop than I did when I was at a Hg shop.

In summary, "Sure it's easy to use, you just have to read this lengthy explanation of its implementation details first," isn't really a compelling argument when you know that there are other competing products that are easy to use even if you didn't spend that much time on RTFM first.

Fair enough. I won't say git's UI is intuitive -- it's not. But once I crested the learning curve, I do prefer it over the alternatives I'm familiar with. When I need to do something unusual, I have better luck figuring out how with git than the others.

That said, I am not familiar with most of the various version control systems out there, and I could easily be missing something that's genuinely better.