It's nice for being integrated with explorer, but far from the best ui. In fact I'd hold up TortoiseGit as an example of why knowing a a ui toolkit does not make a programmer a ui expert: it's a pretty terrible ui. Don't get me wrong: If you know git well and are familiar with how to use TortoiseGit then it's functional. It's just not a good first exposure to git, nor is it easy to learn.