YES, it's ready!
TortoiseGit has come a long way since 2009.
And now Microsoft Windows has the best graphical interface to git ;-)
It's especially nice for people that used TortoiseSVN, because it uses familiar dialogs and terminology. Like "Revert.." instead of "Reset / Checkout" or that it abstracts away the "index" in a single (commit) dialog.
Of course there is still room for improvement, mainly because most commands are forwarded to the commandline version, which doesn't give an optimal visualisation.
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