Actually, the UX differences aren't negligible; from Google's assessment of Mercurial and Git. Complexity has a cost in terms of time, mistakes made, training,

Actually, the UX differences aren't negligible; from Google's assessment of Mercurial and Git. Complexity has a cost in terms of time, mistakes made, training, that can be quantified. From Google's assessment of Mercurial and Git: http://code.google.com/p/support/wiki/DVCSAnalysis http://code.google.com/p/support/wiki/DVCSAnalysis Learning Curve. Git has a steeper learning curve than Mercurial due to a number of factors. Git has more commands and options, the volume of which can be intimidating to new users. Mercurial's documentation tends to be more complete and easier for novices to read. Mercurial's terminology and commands are also a closer to Subversion and CVS, making it familiar to people migrating from those systems.