The claim was that its GUI is better than Magit's, following this claim: "Magit is absolutely the best Git GUI ever."

It may be prettier looking. I've seen many Git GUIs that are prettier than Magit.

But none of them that I've tried have ever come close to the workflow.

I can stage and unstage individual hunks, do complex interactive rebases, squash commits, break apart commits, etc. much faster in Magit than I can in other Git GUIs.

Maybe you're hung up on the "G" part; perhaps I should have just said "UI" rather than "GUI".

So no, I haven't tried that one because it's Mac only, but I'm not really seeing from the screen recordings the kind of workflow that I find so powerful in Magit.